End wall

Abstract

The embodiment of the invention provides an end wall, and relates to the technical field of rail transit. The end wall comprises an end wall frame, a first end wall plate and a second end wall plate, wherein the first end wall plate and the second end wall plate are fixedly connected with the end wall frame; the end wall frame comprises a flat-top framework, and a first end corner post, a second end corner post, a first door upright post and a second door upright post which are fixedly connected with the flat-top framework; the first end wall plate comprises an end wall plate frame, an inner skin and an outer skin, the inner skin and the outer skin are fixedly connected with the end wall plate frame, a filling material is arranged between the inner skin and the outer skin, a plurality of reinforcing beams are arranged on the filling material, and the reinforcing beams are fixedly connected with the inner skin, the outer skin and the end wall plate frame; the first end corner columns and the first door stand columns are fixedly connected with the end wall plate frame. The second end corner column and the second door stand column are both fixedly connected with the second end wall plate. According to the end wall, the end wall frame provides basic support for the end wall, the end wall plate is of a multi-layer composite structure, the steel use amount is reduced through the design, and the weight of the end wall is reduced.

Description

Technical Field

[0001] This application relates to the technical field of rail transit, and particularly to an end wall. Background Art

[0002] The end wall is a part of the body structure of a railway passenger car, located at both ends of the car body. It is mainly used to carry and connect other components of the car body, and at the same time provide structural strength and stability. It usually bears various forces generated during the operation of the passenger car, such as longitudinal and lateral mechanical stresses. In addition, the end wall also plays a role in sound insulation, heat insulation and protection to improve the comfort and safety of passengers.

[0003] In the prior art, the manufacturing process of the end wall begins with selecting a carbon steel sheet material, and the sheet material is processed into the required part shapes through cutting and bending processes. These parts include the end wall frame, end wall panel, process support beam and welding accessories, etc. Then, these processed parts are welded together using a full welding method. Through a series of welding processes, an integral end wall structure is finally formed, which has the necessary mechanical properties to meet the use requirements of railway passenger cars.

[0004] However, the end wall in the prior art has the problem of large weight. In order to meet the safety requirements during the high-speed operation of the passenger car, the end wall often adopts a complex multi-layer structure and a large amount of high-strength steel. Although these materials improve the structural strength, they also significantly increase the self-weight of the end wall. For example, the densely distributed reinforcing ribs, complex connection frames and heavy anti-collision components inside the end wall all achieve strength improvement by increasing the material usage and welding points, which inevitably leads to an increase in the weight of the end wall. Summary of the Invention

[0005] An embodiment of this application provides an end wall to solve the problem of large weight of the end wall in the prior art.

[0006] In a first aspect, an embodiment of this application provides an end wall, which includes: an end wall frame, and a first end wall panel and a second end wall panel fixedly connected to the end wall frame;

[0007] The end wall frame includes a flat top frame, and a first end corner post, a second end corner post, a first door upright post and a second door upright post fixedly connected to the flat top frame;

[0008] The first end wall panel includes an end wall panel frame, and an inner skin and an outer skin fixedly connected to the end wall panel frame. There is a filling material between the inner skin and the outer skin, and a plurality of reinforcing beams are arranged on the filling material, and the plurality of reinforcing beams are all fixedly connected to the inner skin, the outer skin and the end wall panel frame;

[0009] Both the first end corner post and the first door upright post are fixedly connected to the end wall panel frame;

[0010] Both the second end corner post and the second door upright post are fixedly connected to the second end wall panel.

[0011] In a possible design, the end wall frame further includes: a cross beam;

[0012] The cross beam is fixedly connected to the flat top skeleton, the first door upright post, and the second door upright post respectively.

[0013] In a possible design, the flat top skeleton includes a first end patch plate, a first side patch plate, a first shoulder beam, a first upright post, a flat top frame, a plurality of second upright posts, a plurality of reinforcing blocks, a third upright post, a second shoulder beam, a second side patch plate, a second end patch plate, and a support beam;

[0014] The first end patch plate is fixedly connected to the first side patch plate, the first shoulder beam, and the support beam respectively. The first shoulder beam is fixedly connected to the first side patch plate, the flat top frame, and the first upright post respectively. The flat top frame is fixedly connected to the plurality of second upright posts, the second shoulder beam, and the third upright post respectively. The second shoulder beam is fixedly connected to the second end patch plate and the second side patch plate respectively. The second end patch plate is fixedly connected to the support beam;

[0015] The plurality of reinforcing blocks, the first side patch plate, and the second side patch plate are all fixedly connected to the support beam.

[0016] In a possible design, a plurality of inner windshield mounting holes are provided on the flat top frame, and the plurality of inner windshield mounting holes are all used for mounting inner windshields.

[0017] In a possible design, a plurality of cross - wiring interfaces, a plurality of embedded grooves, and a plurality of sinking structures are provided on the first end wall panel. The plurality of cross - wiring interfaces are used to provide connection and fixing interfaces for the installation of external cross - wiring seats. The plurality of embedded grooves are used to provide interfaces for the layout of electrical wire troughs. The plurality of sinking structures are used to provide space for the bundling of external wire harnesses.

[0018] In a possible design, there is a glue joint between the end wall frame and the first end corner post. A spacer and a glue - blocking strip are provided in the glue joint. Sealant is provided between the spacer and the glue - blocking strip. The spacer is used to connect the end wall frame and the first end corner post, and at the same time reduce the amount of sealant in the glue joint. The glue - blocking strip is used to enclose the sealant.

[0019] In a possible design, a sunk structure is provided on the connection side between the end wall frame and the first end corner column, and also on the connection side between the first end corner column and the end wall frame. A hand-laid skin is provided on the sunk structure, and the hand-laid skin is fixedly connected to the end wall frame, the first end corner column, and the glue joint respectively. The hand-laid skin is used to hide the glue joint.

[0020] In a possible design, a first cross beam, a second cross beam, a third cross beam, a first longitudinal beam, and a second longitudinal beam are provided inside the first end wall panel;

[0021] The first cross beam is fixedly connected to the first longitudinal beam and the inner skin respectively. The first longitudinal beam is fixedly connected to the second cross beam. The second cross beam is fixedly connected to the second longitudinal beam and the outer skin respectively. The second longitudinal beam is fixedly connected to the third cross beam. The third cross beam is fixedly connected to the inner skin;

[0022] The filling material is provided between the first longitudinal beam and the second longitudinal beam;

[0023] A plurality of inner skin sunk structures are provided on the inner skin, and the plurality of inner skin sunk structures are used to provide a wire tying space.

[0024] In a possible design, a carbon fiber beam is provided inside the first end wall panel. The carbon fiber beam is fixedly connected to the inner skin, the outer skin, and the filling material respectively. Foam and metal blocks are provided on the carbon fiber beam;

[0025] Mounting holes are provided on both the outer skin and the carbon fiber beam, and the mounting holes are used to mount the car end jumper wire.

[0026] In a possible design, the end wall further includes: a plurality of rivets;

[0027] Both the first door upright column and the first end corner column are fixedly connected to the end wall panel frame through the plurality of rivets.

[0028] This application provides an end wall, which includes: an end wall frame, a first end wall panel and a second end wall panel fixedly connected to the end wall frame; the end wall frame includes a flat top skeleton, a first end corner post, a second end corner post, a first door upright post and a second door upright post fixedly connected to the flat top skeleton; the first end wall panel includes an end wall panel frame, an inner skin and an outer skin fixedly connected to the end wall panel frame, a filling material is arranged between the inner skin and the outer skin, and a plurality of reinforcing beams are arranged on the filling material, and the plurality of reinforcing beams are all fixedly connected to the inner skin, the outer skin and the end wall panel frame; the first end corner post and the first door upright post are both fixedly connected to the end wall panel frame; the second end corner post and the second door upright post are both fixedly connected to the second end wall panel. The end wall of the embodiment of this application adopts an end wall frame composed of a flat top skeleton, end corner posts and door upright posts, which provides a solid basic support for the overall structure. At the same time, the end wall panel adopts a multi-layer structure with a filling material between the inner and outer skins, and is connected by a plurality of reinforcing beams, enhancing the strength and rigidity of the structure. This design not only optimizes the distribution of materials, reduces the dependence on high-strength steel, but also reduces the material usage and the number of welding points, thereby reducing the weight of the end wall. While maintaining the necessary mechanical properties and safety, the lightweight of the structure is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0030] Figure 1 Structural schematic diagram of the end wall provided by the embodiment of this application Figure 1 ;

[0031] Figure 2 Structural schematic diagram of the end wall provided by the embodiment of this application Figure 2 ;

[0032] Figure 3 Structural schematic diagram of the end wall provided by the embodiment of this application Figure 3 ;

[0033] Figure 4 Structural schematic diagram of the end wall provided by the embodiment of this application Figure 4 ;

[0034] Figure 5 Structural schematic diagram of the end wall provided by the embodiment of this application Figure 5 ;

[0035] Figure 6Structural schematic of the end wall provided by the embodiment of the present application Figure 6 ;

[0036] Figure 7 Structural schematic of the end wall provided by the embodiment of the present application Figure 7 。

[0037] Description of reference numerals:

[0038] 100 - End wall frame;

[0039] 101 - Flat top skeleton;

[0040] 1011 - First end patch panel;

[0041] 1012 - First side patch panel;

[0042] 1013 - First shoulder beam;

[0043] 1014 - First column;

[0044] 1015 - Flat top frame;

[0045] 1016 - Second column;

[0046] 1017 - Reinforcing block;

[0047] 1018 - Third column;

[0048] 1019 - Second shoulder beam;

[0049] 1020 - Second side patch panel;

[0050] 1021 - Second end patch panel;

[0051] 1022 - Support beam;

[0052] 102 - First end corner post;

[0053] 103 - Second end corner post;

[0054] 104 - First door column;

[0055] 105 - Second door column;

[0056] 106 - Cross beam;

[0057] 107 - Sunk structure;

[0058] 108 - Manually pasted skin;

[0059] 200 - First end wall panel;

[0060] 201 - End wall panel frame;

[0061] 202 - Inner skin;

[0062] Inner Mongolia skin sunken platform in 2021;

[0063] Outer Mongolia skin in 203;

[0064] Filling material in 204;

[0065] Reinforcing beam in 205;

[0066] Cross-wiring interface in 206;

[0067] Embedded groove in 207;

[0068] Sunken structure in 208;

[0069] First cross beam in 209;

[0070] Second cross beam in 210;

[0071] Third cross beam in 211;

[0072] First longitudinal beam in 212;

[0073] Second longitudinal beam in 213;

[0074] Carbon fiber beam in 214;

[0075] Mounting hole in 2141;

[0076] Second end wall panel in 300;

[0077] Glue joint in 400;

[0078] Spacer block in 401;

[0079] Glue blocking strip in 402. Detailed implementation mode

[0080] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation modes described in the following exemplary embodiments do not represent all the implementation modes consistent with the present application. On the contrary, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0081] In the embodiments of the present application, terms such as "first" and "second" are used to distinguish identical or similar items with basically the same functions and effects. Those skilled in the art can understand that terms such as "first" and "second" do not limit the quantity and execution order, and "first", "second", etc. do not necessarily mean different. It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner. In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more.

[0082] It should be noted that "when... " in the embodiments of the present application can be at the instant when a certain situation occurs, or within a period of time after a certain situation occurs. The embodiments of the present application do not make specific limitations in this regard. In addition, the end wall provided in the embodiments of the present application is only an example, and the end wall may also include more or less content.

[0083] To facilitate a clear description of the technical solutions of the embodiments of the present application, the following briefly introduces some terms and technologies involved in the embodiments of the present application:

[0084] End wall: It is a structural component, usually located at the end of a structure, used to provide support, separate spaces or enclose the structure. It can be made of various materials such as concrete, steel or composite materials, and is often used to enhance the stability and safety of the structure. At the same time, it may integrate electrical connections and other functional elements.

[0085] Sunken platform structure: It is a design feature, usually referring to a locally lowered area in a building or mechanical structure, used to accommodate or install other components. By reducing the height of a specific area, the sunken platform structure can provide additional space or support, and is often used to install equipment, wiring or other functional elements to optimize space utilization and improve the overall performance of the structure.

[0086] Skin: It is a covering material, usually used to cover and protect the outer surface of a structure. It can be made of metal, composite materials or other durable materials, and is widely used in fields such as automobiles and buildings. The skin not only provides physical protection, but also can enhance the aerodynamic performance, aesthetics and weather resistance of the structure. At the same time, it may have functions such as heat insulation and sound insulation.

[0087] Exemplary embodiments will be described in detail herein, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0088] The technical solutions of the present invention will be described in detail below with specific embodiments. These several specific embodiments below can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0089] To clearly understand the technical solutions of the present application, the solutions of the prior art will be introduced in detail first. In the prior art, end walls are located at both ends of the car body, mainly used to carry and connect other components of the car body, and at the same time provide structural strength and stability. The manufacturing process of the end wall begins with selecting carbon steel sheet materials, and the sheet materials are processed into the required part shapes through cutting and bending processes. These parts include end wall skeletons, end wall panels, process support beams, welding attachments, etc. Then, these processed parts are welded together using a full welding method. Through a series of welding processes, an integral end wall structure is formed, which has the necessary mechanical properties to meet the use requirements of railway passenger cars.

[0090] However, the end wall in the prior art has the problem of large weight. To meet the safety requirements during the high-speed operation of passenger cars, the end wall often adopts complex multi-layer structures and a large amount of high-strength steel. Although these materials improve the structural strength, they also significantly increase the self-weight of the end wall. For example, the densely arranged reinforcing ribs, complex connection frames, and heavy anti-collision components inside the end wall all achieve strength improvement by increasing the material usage and welding points, which inevitably leads to an increase in the weight of the end wall.

[0091] Therefore, aiming at the problem of the large weight of the end wall in the prior art, it is found in the research that to solve this problem, lightweight materials and optimized design structures can be used, and the geometric shape and internal support structure of the end wall can be optimized by computer-aided means: ① High-strength lightweight materials such as aluminum alloy or carbon fiber composite materials can be used to replace the traditional carbon steel material to reduce the overall weight of the end wall. ② The modular design method can be adopted to divide the end wall into multiple detachable lightweight modules, which is convenient for manufacturing and assembly, and at the same time reduces the weight burden during transportation and installation. ③ The internal support structure of the end wall can be redesigned through topology optimization and finite element analysis to reduce unnecessary material usage while maintaining the necessary strength and stiffness.

[0092] Specifically: A lightweight end wall can be developed. First, new lightweight materials such as composite materials or high-strength alloys are used to reduce the density of the base material. Second, advanced design software is used for structural optimization to ensure that necessary mechanical properties are maintained while reducing material usage. Finally, modern manufacturing technologies such as additive manufacturing and precision welding are combined to optimize the production process to reduce material waste and improve connection efficiency, thereby achieving overall weight reduction of the end wall and enhancing its performance in a high-speed operating environment.

[0093] The end wall of the embodiment of the present application adopts an end wall frame composed of a flat top skeleton, end corner columns, and door columns, providing a solid foundation support for the overall structure. At the same time, the end wall panel adopts a multi-layer structure with materials filled between the inner and outer skins and is connected by multiple reinforcing beams, enhancing the strength and rigidity of the structure. This design not only optimizes the distribution of materials, reduces the dependence on high-strength steel, but also reduces the material usage and the number of welding points, thus reducing the weight of the end wall. While maintaining necessary mechanical properties and safety, the lightweight of the structure is achieved.

[0094] Based on the above creative findings, the technical solution of the present application is proposed.

[0095] The embodiments of the present application are introduced below with reference to the accompanying drawings of the specification.

[0096] Figure 1 Structural schematic of the end wall provided for the embodiment of the present application Figure 1 。 Figure 2 Structural schematic of the end wall provided for the embodiment of the present application Figure 2 。As Figure 1 and Figure 2 shown, in this embodiment, the end wall includes: an end wall frame 100, and a first end wall panel 200 and a second end wall panel 300 fixedly connected to the end wall frame 100.

[0097] Specifically, the end wall frame 100 can be fixedly connected to the first end wall panel 200 and the second end wall panel 300 respectively. This design can construct the end wall of the structure, providing structural support and isolation functions. The end wall frame 100 provides the overall framework structure, while the first end wall panel 200 and the second end wall panel 300 enhance the strength, sound insulation, and heat insulation performance of the wall through the combination of inner and outer skins and filling materials.

[0098] The end wall frame 100 includes a flat top skeleton 101, and a first end corner column 102, a second end corner column 103, a first door column 104, and a second door column 105 fixedly connected to the flat top skeleton 101.

[0099] Specifically, the flat top skeleton 101 can be fixedly connected to the first end corner post 102, the second end corner post 103, the first door upright post 104, and the second door upright post 105 respectively. This design can provide a stable and robust frame structure to support and fix the end wall panels and other wall elements. The flat top skeleton 101, as the main horizontal support structure, forms a complete frame when connected to each upright post, ensuring the overall stability of the wall. This frame structure can effectively bear the weight of the wall and resist the influence of the external environment.

[0100] The first end wall panel 200 includes an end wall panel frame 201, an inner skin 202 and an outer skin 203 fixedly connected to the end wall panel frame 201. There is a filling material 204 between the inner skin 202 and the outer skin 203, and a plurality of reinforcing beams 205 are provided on the filling material 204. The plurality of reinforcing beams 205 are all fixedly connected to the inner skin 202, the outer skin 203, and the end wall panel frame 201.

[0101] Specifically, the end wall panel frame 201 can be fixedly connected to the inner skin 202 and the outer skin 203 respectively. The filling material 204 is filled between the inner and outer skins, and a plurality of reinforcing beams 205 are arranged in the filling material 204. These reinforcing beams 205 are fixedly connected to the inner skin 202, the outer skin 203, and the end wall panel frame 201. This design is used to enhance the structural strength and stability of the first end wall panel 200, while providing heat insulation, sound insulation, and fire prevention properties. The inner and outer skins provide the basic covering and protection functions of the first end wall panel 200, while the filling material 204 improves the heat preservation and sound insulation effects of the first end wall panel 200. The addition of the reinforcing beams 205 further improves the bending and compressive resistance of the first end wall panel 200, making it suitable for application scenarios that require high strength and durability.

[0102] Both the first end corner post 102 and the first door upright post 104 are fixedly connected to the end wall panel frame 201.

[0103] Specifically, the first end corner post 102 and the first door upright post 104 can be fixedly connected to the end wall panel frame 201. This connection can be achieved by welding, bolt connection, or other mechanical connection methods to ensure the stability and durability of the structure. This design is used to provide the vertical support and stability of the wall, ensuring that the end wall panel maintains its shape and position when subjected to external loads. As key vertical support members, the fixed connection between the first end corner post 102 and the first door upright post 104 and the end wall panel frame 201 helps to disperse the weight and external pressure of the wall, thereby improving the safety and reliability of the overall structure.

[0104] Both the second end corner post 103 and the second door upright post 105 are fixedly connected to the second end wall panel 300.

[0105] Specifically, both the second end corner post 103 and the second door upright post 105 are fixedly connected to the second end wall panel 300. This connection can be achieved by welding, bolt connection or other suitable mechanical connection methods to ensure the firmness and durability of the connection. This design is used to provide vertical support and stability for the wall, especially in the area of the second end wall panel 300. The second end corner post 103 and the second door upright post 105, as key vertical support members, the fixed connection with the second end wall panel 300 helps to disperse and bear the weight of the wall and the external applied loads, ensuring the structural integrity and stability of the wall during use.

[0106] An end wall provided in this embodiment includes an end wall frame and two end wall panels. The end wall frame is composed of a flat top skeleton, two end corner posts and two door upright posts, and is fixedly connected to the first and second end wall panels. The first end wall panel is composed of an end wall panel frame, inner and outer skins and filling materials. A plurality of reinforcing beams are provided in the filling materials, and these reinforcing beams are fixedly connected to the inner and outer skins and the end wall panel frame. The first end corner post and the first door upright post are fixedly connected to the first end wall panel, while the second end corner post and the second door upright post are fixedly connected to the second end wall panel. An end wall achieves the following technical effects: By adopting an end wall frame composed of a flat top skeleton, end corner posts and door upright posts, it provides a strong basic support for the overall structure. At the same time, the end wall panel adopts a multi-layer structure of filling materials between the inner and outer skins, and is connected by a plurality of reinforcing beams, enhancing the strength and rigidity of the structure. This design not only optimizes the distribution of materials, reduces the dependence on high-strength steel, but also reduces the material usage and the number of welding points, thereby reducing the weight of the end wall. While maintaining the necessary mechanical properties and safety, the lightweight of the structure is realized.

[0107] In a possible design, the end wall frame 100 further includes: a cross beam 106.

[0108] Specifically, the cross beam 106 is respectively fixedly connected to the flat top skeleton 101, the first door upright post 104 and the second door upright post 105. The addition of the cross beam 106 can be achieved by welding, bolt connection or other mechanical connection methods to ensure the stability of the structure. This design is used to enhance the overall rigidity and stability of the end wall frame 100, especially to provide additional horizontal support between the door upright posts. By adding the cross beam 106 between the flat top skeleton and the door upright posts, the bending and torsional resistance of the structure are improved, thereby enhancing the stability and durability of the end wall when bearing external loads.

[0109] The cross beam 106 is respectively fixedly connected to the flat top skeleton 101, the first door upright post 104 and the second door upright post 105.

[0110] Specifically, the cross beam 106 can be fixedly connected to the flat top frame 101, the first door column 104, and the second door column 105 by welding or bolt connection respectively to ensure the firmness and durability of the connection. The cross beam 106 is designed to provide additional horizontal support and enhance the overall rigidity and stability of the end wall frame.

[0111] The technical effect of this embodiment is that by adding a cross beam in the end wall frame, the technical effect of enhancing the overall rigidity and stability of the structure is achieved. The cross beam connects the flat top frame, the first door column, and the second door column, providing additional horizontal support for the frame. This design effectively improves the bending and torsion resistance of the end wall when bearing external loads, reduces the possibility of deformation, and thus enhances the durability and safety of the end wall.

[0112] In a possible design, the end wall further includes: a plurality of rivets.

[0113] Specifically, the rivets are used to firmly fix the first door column 104 and the first end corner column 102 to the end wall panel frame 201. The rivets can be installed through drilling and riveting processes to ensure a tight connection and structural integrity between components. This design is used to provide a high-strength mechanical connection to prevent loosening or displacement under external loads or vibrations, thereby improving the overall stability and durability of the end wall. Through the application of rivets, the end wall can maintain its structural integrity under various operating conditions, ensuring its long-term reliable performance.

[0114] Both the first door column 104 and the first end corner column 102 are fixedly connected to the end wall panel frame 201 through a plurality of rivets.

[0115] Specifically, the first door column 104 and the first end corner column 102 are fixedly connected to the end wall panel frame 201 through a plurality of rivets, achieving a firm mechanical connection. The rivet connection can be realized by drilling holes at the corresponding positions of the column and the end wall panel frame, then inserting the rivets into the holes and fixing them with a riveting tool. This connection method provides a high-strength and reliable fixing effect, can effectively withstand the dynamic and static loads of the structure, and prevent loosening or displacement. The rivet connection not only ensures the overall stability and safety of the structure, but also simplifies the installation and maintenance process.

[0116] The technical effect of this embodiment is that by using a plurality of rivets to fixedly connect the first door column and the first end corner column to the end wall panel frame, the technical effect of enhancing the structural stability and connection strength is achieved. The rivet connection provides a highly reliable mechanical fixation, can effectively resist vibrations and external impacts, and ensures the stability of the structure under dynamic and static loads. This connection method not only improves the overall rigidity and durability of the end wall, but also simplifies the assembly and maintenance process, reducing production costs and time.

[0117] Figure 3 Structural schematic of the end wall provided by the embodiment of the present application Figure 3 . As Figure 3 shown, in this embodiment, based on the Figure 1 and Figure 2 embodiments, the end wall is described in detail.

[0118] The flat-top skeleton 101 includes a first end gusset plate 1011, a first side gusset plate 1012, a first shoulder beam 1013, a first column 1014, a flat-top frame 1015, a plurality of second columns 1016, a plurality of reinforcement blocks 1017, a third column 1018, a second shoulder beam 1019, a second side gusset plate 1020, a second end gusset plate 1021, and a support beam 1022.

[0119] Specifically, the flat-top skeleton 101 is composed of multiple structural components. These components are fixed together by welding, bolt connection, or other mechanical connection methods to form an integral skeleton structure. This design is used to provide a strong and stable framework to support the structural integrity of the entire end wall. By reasonably configuring and connecting these components, the flat-top skeleton can effectively disperse and bear the loads from the wall and the external environment, ensuring that the end wall has good bending, compressive, and torsional resistance during use.

[0120] The first end gusset plate 1011 is fixedly connected to the first side gusset plate 1012, the first shoulder beam 1013, and the support beam 1022 respectively. The first shoulder beam 1013 is fixedly connected to the first side gusset plate 1012, the flat-top frame 1015, and the first column 1014 respectively. The flat-top frame 1015 is fixedly connected to the plurality of second columns 1016, the second shoulder beam 1019, and the third column 1018 respectively. The second shoulder beam 1019 is fixedly connected to the second end gusset plate 1021 and the second side gusset plate 1020 respectively. The second end gusset plate 1021 is fixedly connected to the support beam 1022.

[0121] Specifically, the connection between two components can be achieved by welding, bolts, or other mechanical connection methods. These connections are used to construct a strong frame structure to ensure that the flat-top skeleton 101 can effectively bear and disperse the loads from the wall and the external environment, improving the structural stability and overall strength of the end wall.

[0122] The plurality of reinforcement blocks 1017, the first side gusset plate 1012, and the second side gusset plate 1020 are all fixedly connected to the support beam 1022.

[0123] Specifically, multiple reinforcing blocks 1017, the first side plate 1012, and the second side plate 1020 can be connected to the support beam 1022 by welding, bolts, or other mechanical connection methods to ensure the firmness and stability of the structure. The connection of these reinforcing blocks 1017 and side plates to the support beam 1022 is used to enhance the overall rigidity and load-bearing capacity of the flat top frame 101. By fixing the reinforcing blocks 1017 and side plates to the support beam, the bending and torsion resistance performance of the structure is further improved, thereby enhancing the stability and durability of the end wall when bearing external loads.

[0124] The technical effect of this embodiment is that by reasonably configuring and fixedly connecting components such as the first end plate, side plates, shoulder beams, columns, flat top frames, reinforcing blocks, and support beams, a strong frame structure is formed. Such a design effectively improves the bending, compression, and torsion resistance performance of the end wall, ensures that stress can be evenly distributed when bearing external loads, reduces deformation and damage, thereby enhancing the safety and durability of the end wall, and ensuring its structural integrity in various application scenarios.

[0125] In a possible design, multiple inner windshield mounting holes are provided on the flat top frame 1015, and all of the multiple inner windshield mounting holes are used for mounting the inner windshield.

[0126] Specifically, multiple inner windshield mounting holes can be provided on the flat top frame 1015. These holes can be processed by processes such as drilling or casting and are distributed at appropriate positions on the flat top frame to facilitate the installation of the inner windshield. These mounting holes are used to fix the inner windshield so that it can be firmly connected to the flat top frame. The installation of the inner windshield helps to improve the aerodynamic performance of the end wall, reduce wind resistance, and may provide additional heat insulation or sound insulation effects, thereby improving the functional performance and usage efficiency of the end wall under different environmental conditions.

[0127] The technical effect of this embodiment is that by providing multiple inner windshield mounting holes on the flat top frame, the technical effect of convenient installation of the inner windshield is achieved. These mounting holes enable the inner windshield to be firmly and precisely fixed on the flat top frame, thereby enhancing the aerodynamic performance of the end wall, reducing wind resistance, and providing additional heat insulation or sound insulation effects.

[0128] Figure 4 Structural schematic of the end wall provided by the embodiment of the present application Figure 4 . As Figure 4 shown, this embodiment further elaborates on the end wall on the basis of the Figures 1 to 3 embodiment.

[0129] The first end wall panel 200 is provided with a plurality of jumper wire interfaces 206, a plurality of embedded grooves 207 and a plurality of sinking structures 208. The plurality of jumper wire interfaces 206 are used to provide interfaces for the installation of external jumper wire seats for connection and fixation. The plurality of embedded grooves 207 are used to provide interfaces for the layout of electrical wire grooves. The plurality of sinking structures 208 are used to provide space for the bundling of external wire harnesses.

[0130] Specifically, the first end wall panel 200 integrates a plurality of jumper wire interfaces 206, a plurality of embedded grooves 207 and a plurality of sinking structures 208. These structures can be realized by pre-designing and processing corresponding holes, grooves and sunken areas on the end wall panel. The jumper wire interfaces 206 are used to provide connection and fixation with external jumper wire seats to ensure the stability and reliability of electrical connections. The embedded grooves 207 are used to arrange electrical wire grooves to provide neat cable management and protection. The sinking structures 208 provide additional space for the bundling of external wire harnesses, facilitating the fixation and arrangement of wire harnesses. This design not only improves the functional integration of the end wall, but also simplifies the installation and maintenance of the electrical system, enhancing the practicality and convenience of the overall structure.

[0131] The technical effect of this embodiment is: by providing a plurality of jumper wire interfaces, embedded grooves and sinking structures on the first end wall panel 200, the integration degree of the end wall electrical system and the installation convenience are improved. This design effectively simplifies the installation and maintenance process of the electrical system, enhances the functionality and practicality of the end wall, and at the same time ensures the reliability and safety of electrical connections, providing higher integration and operation convenience for the overall structure.

[0132] Figure 5 Schematic diagram of the structure of the end wall provided by the embodiment of the present application Figure 5 As Figure 5 shown, on the basis of the Figures 1 to 4 embodiment, the end wall is described in detail.

[0133] There is a glue joint 400 between the end wall frame 100 and the first end corner post 102. The glue joint 400 is provided with a spacer 401 and a glue stop strip 402. There is a sealant between the spacer 401 and the glue stop strip 402. The spacer 401 is used to connect the end wall frame 100 and the first end corner post 102, and at the same time reduce the amount of sealant in the glue joint 400. The glue stop strip 402 is used to seal the sealant.

[0134] Specifically, a sealant joint 400 can be provided between the end wall frame 100 and the first end corner column 102. A spacer 401 and a sealant strip 402 are arranged in the sealant joint 400. The spacer 401 provides a stable connection between the end wall frame and the first end corner column, and at the same time reduces the amount of sealant by occupying part of the space, thereby reducing the material cost. The sealant strip 402 is used to enclose the sealant to ensure the stability and effectiveness of the sealant within the sealant joint. This design is used to improve the sealing performance of the end wall, prevent moisture and air from penetrating, enhance the durability and protection ability of the structure, and at the same time optimize the material use and improve the overall economy and construction efficiency.

[0135] The technical effect of this embodiment is that by providing a sealant joint between the end wall frame and the first end corner column and integrating a spacer and a sealant strip within the sealant joint, the technical effects of enhancing the structural sealing performance and connection stability are achieved. The spacer not only provides a firm connection but also reduces the amount of sealant used, thereby reducing the material cost. The sealant strip ensures the sealing and durability of the sealant, preventing the penetration of external moisture and air. This design effectively improves the protection performance and durability of the end wall, while optimizing the material use and construction efficiency, ensuring that the structure maintains a good sealing effect under various environmental conditions.

[0136] In a possible design, a counterbore structure 107 is provided on the connecting side of the end wall frame 100 and the first end corner column 102, and on the connecting side of the first end corner column 102 and the end wall frame 100. A hand-laid skin 108 is provided on the counterbore structure 107. The hand-laid skin 108 is fixedly connected to the end wall frame 100, the first end corner column 102, and the sealant joint 400 respectively. The hand-laid skin 108 is used to hide the sealant joint 400.

[0137] Specifically, a groove with a preset shape can be dug on the connecting side of the end wall frame 100 and the first end corner column 102, and on the connecting side of the first end corner column 102 and the end wall frame 100 to obtain the counterbore structure 107. A hand-laid skin 108 is covered on the counterbore structure 107. The skin is connected to the end wall frame, the first end corner column, and the sealant joint 400 by an adhesive or other fixing means. The hand-laid skin 108 is used to hide the sealant joint 400, thereby providing a smooth and aesthetic appearance and improving the overall visual effect. This design not only enhances the aesthetics of the structure but also protects the sealant joint from the external environment, extends the service life of the sealing system, and at the same time provides an additional protective layer.

[0138] The technical effect of this embodiment is that by providing a counterbore structure and applying a hand-laid skin thereon, the technical effects of enhancing the aesthetics of the structure and protecting the sealing system are achieved. The hand-laid skin effectively hides the sealant joint, provides a smooth appearance, improves the overall visual effect, and at the same time provides additional protection for the sealant joint, preventing the influence of the external environment on the sealant, and enhancing the durability of the structure and the reliability of the sealing system.

[0139] Figure 6 Structural schematic of the end wall provided by the embodiments of the present application Figure 6 As Figure 6 shown, based on the Figures 1 to 5 embodiments, the end wall is described in detail in this embodiment.

[0140] A first cross beam 209, a second cross beam 210, a third cross beam 211, a first longitudinal beam 212 and a second longitudinal beam 213 are provided inside the first end wall panel 200.

[0141] Specifically, these beams can be connected to the inner skin 202 and the outer skin 203 by welding, bolt connection or other suitable fixing methods to form a solid frame. This frame is used to improve the overall strength and rigidity of the end wall panel, ensuring that it can effectively disperse stress when bearing external loads, reducing deformation and damage. In addition, the filling material 204 provides additional heat insulation and sound insulation effects, further enhancing the functionality and durability of the end wall panel.

[0142] The first cross beam 209 is fixedly connected to the first longitudinal beam 212 and the inner skin 202 respectively. The first longitudinal beam 212 is fixedly connected to the second cross beam 210. The second cross beam 210 is fixedly connected to the second longitudinal beam 213 and the outer skin 203 respectively. The second longitudinal beam 213 is fixedly connected to the third cross beam 211. The third cross beam 211 is fixedly connected to the inner skin 202.

[0143] Specifically, the first cross beam 209, the second cross beam 210, the third cross beam 211, the first longitudinal beam 212 and the second longitudinal beam 213 form a mutually supporting frame structure. These beams can be connected to the inner skin 202 and the outer skin 203 by fixing methods such as welding, riveting or bolts to ensure a firm combination between the components. The connection of the first cross beam 209 with the first longitudinal beam 212 and the inner skin 202 provides initial structural support. The connection of the first longitudinal beam 212 with the second cross beam 210 further enhances the stability of the frame. The connection of the second cross beam 210 with the second longitudinal beam 213 and the outer skin 203 ensures the fixation and support of the outer skin. The connection of the second longitudinal beam 213 with the third cross beam 211, and the connection of the third cross beam 211 with the inner skin 202 form a complete frame closed loop. This design is used to enhance the overall strength and rigidity of the end wall panel, ensuring that it can effectively disperse stress when bearing external loads, reducing deformation and damage, and at the same time providing structural stability and durability.

[0144] A filling material 204 is provided between the first longitudinal beam 212 and the second longitudinal beam 213.

[0145] Specifically, the filling material 204 can be a foam material, an insulation board or other suitable material, and can be filled in the space between the two longitudinal beams by pouring, bonding or mechanical fixing. This filling material is used to provide additional heat insulation and sound insulation effects, and improve the thermal and acoustic performance of the end wall panel. In addition, the filling material can also increase the overall rigidity and stability of the structure, help disperse and absorb external impact and vibration, and thus improve the durability and service life of the end wall panel.

[0146] A plurality of inner skin sunken platforms 2021 are provided on the inner skin 202, and the plurality of inner skin sunken platforms 2021 are used to provide wire binding space.

[0147] Specifically, the inner skin 202 is provided with wire tying space by designing and processing a plurality of inner skin recesses 2021. The inner skin recesses 2021 can form recessed areas on the inner skin by stamping, pressing or other forming processes. These recessed areas are used to provide additional space for the arrangement of cables and harnesses, so that the cables can be neatly fixed on the inner skin to avoid exposed or messy wiring. This design not only improves the internal neatness and safety of the end wall, but also facilitates the installation and maintenance of the electrical system.

[0148] The technical effect of this embodiment is: by arranging multiple cross beams and longitudinal beams in the first end wall panel and designing an inner skin sinking platform on the inner skin, the technical effect of enhancing structural strength and optimizing cable management is achieved. The arrangement of the cross beams and longitudinal beams improves the overall rigidity and stability of the end wall panel, ensuring that it can effectively disperse stress when bearing external loads. At the same time, the inner skin sinking platform provides a space for tying cables, making the cable arrangement more neat and orderly, and improving the installation convenience and safety of the electrical system.

[0149] Figure 7 The structure of the end wall provided in the embodiment of the present application is schematically shown Figure 7 .like Figure 7 As shown, in this embodiment Figures 1 to 6 Based on the embodiments, the end wall is described in detail.

[0150] A carbon fiber beam 214 is provided in the first end wall panel 200 . The carbon fiber beam 214 is fixedly connected to the inner skin 202 , the outer skin 203 and the filling material 204 , respectively. Foam and metal blocks are provided on the carbon fiber beam 214 .

[0151] Specifically, a carbon fiber beam 214 is installed inside the first end wall panel 200 to enhance the strength and lightweight performance of the structure. The carbon fiber beam 214 can be fixed between the inner skin 202, the outer skin 203 and the filling material 204 by adhesives, bolts or other suitable connection methods. Foam and metal blocks are integrated on the carbon fiber beam 214, and these materials can be attached to the carbon fiber beam by embedding or adhesion. The foam material is used to provide additional heat insulation and energy absorption effects, while the metal blocks are used to increase the local strength and stability. This design not only improves the overall rigidity and impact resistance of the end wall panel, but also effectively reduces the structural weight, improves energy efficiency and durability.

[0152] Mounting holes 2141 are provided on both the outer skin 203 and the carbon fiber beam 214, and the mounting holes 2141 are used for installing the car body end jumper wire.

[0153] Specifically, the mounting holes 2141 are provided on the outer skin 203 and the carbon fiber beam 214 through precise machining and positioning to achieve the installation of the car body end jumper wire. The mounting holes 2141 can be formed on the outer skin and the carbon fiber beam by processes such as drilling or die forming, ensuring that their positions and dimensions meet the requirements for the installation of the jumper wire. These mounting holes are used to provide a stable installation position for the car body end jumper wire, ensuring that the jumper wire maintains a reliable connection and fixed state during the operation of the vehicle. This design not only simplifies the installation process of the jumper wire, but also improves the stability and safety of the electrical connection, ensuring the normal operation and maintenance convenience of the vehicle electrical system.

[0154] The technical effects of this embodiment are as follows: By setting a carbon fiber beam inside the first end wall panel and fixedly connecting it to the inner skin, the outer skin and the filling material, the technical effects of enhancing the structural strength and reducing the weight are achieved. The carbon fiber beam enhances the strength of the wall panel, the foam material on the beam increases the heat insulation and energy absorption performance, while the metal blocks improve the local strength and stability. In addition, the mounting holes on the outer skin and the carbon fiber beam facilitate the installation of the car body end jumper wire. This design not only improves the mechanical performance and durability of the end wall panel, but also optimizes its functional integration.

[0155] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An end wall, characterized in that, Comprising: An end wall frame (100), and a first end wall panel (200) and a second end wall panel (300) fixedly connected to the end wall frame (100); The end wall frame (100) includes a flat top skeleton (101), and a first end corner post (102), a second end corner post (103), a first door upright post (104) and a second door upright post (105) fixedly connected to the flat top skeleton (101); The first end wall panel (200) includes an end wall panel frame (201), and an inner skin (202) and an outer skin (203) fixedly connected to the end wall panel frame (201). A filling material (204) is provided between the inner skin (202) and the outer skin (203). A plurality of reinforcing beams (205) are provided on the filling material (204), and the plurality of reinforcing beams (205) are all fixedly connected to the inner skin (202), the outer skin (203) and the end wall panel frame (201); Both the first end corner post (102) and the first door upright post (104) are fixedly connected to the end wall panel frame (201); Both the second end corner post (103) and the second door upright post (105) are fixedly connected to the second end wall panel (300).

2. The end wall according to claim 1, characterized in that, The end wall frame (100) further includes: a cross beam (106); The cross beam (106) is respectively fixedly connected to the flat top skeleton (101), the first door upright post (104) and the second door upright post (105).

3. The end wall according to claim 2, wherein, The flat top skeleton (101) includes a first end reinforcing plate (1011), a first side reinforcing plate (1012), a first shoulder beam (1013), a first upright post (1014), a flat top frame (1015), a plurality of second upright posts (1016), a plurality of reinforcing blocks (1017), a third upright post (1018), a second shoulder beam (1019), a second side reinforcing plate (1020), a second end reinforcing plate (1021) and a support beam (1022); The first end reinforcing plate (1011) is respectively fixedly connected to the first side reinforcing plate (1012), the first shoulder beam (1013) and the support beam (1022). The first shoulder beam (1013) is respectively fixedly connected to the first side reinforcing plate (1012), the flat top frame (1015) and the first upright post (1014). The flat top frame (1015) is respectively fixedly connected to the plurality of second upright posts (1016), the second shoulder beam (1019) and the third upright post (1018). The second shoulder beam (1019) is respectively fixedly connected to the second end reinforcing plate (1021) and the second side reinforcing plate (1020). The second end reinforcing plate (1021) is fixedly connected to the support beam (1022); The plurality of reinforcing blocks (1017), the first side reinforcing plate (1012) and the second side reinforcing plate (1020) are all fixedly connected to the support beam (1022).

4. The end wall according to claim 3, characterized in that, The flat top frame (1015) is provided with a plurality of inner windshield mounting holes, and the plurality of inner windshield mounting holes are all used for mounting the inner windshield.

5. The end wall according to claim 1, characterized in that, The first end wall panel (200) is provided with a plurality of cross-connection interfaces (206), a plurality of embedded grooves (207) and a plurality of sinking structures (208). The plurality of cross-connection interfaces (206) are used to provide connection and fixing interfaces for the installation of external cross-connection seats. The plurality of embedded grooves (207) are used to provide interfaces for the layout of electrical wire grooves. The plurality of sinking structures (208) are used to provide space for the bundling of external wire harnesses.

6. The end wall according to claim 1, characterized in that, A glue joint (400) is provided between the end wall frame (100) and the first end corner post (102). A spacer block (401) and a glue blocking strip (402) are arranged in the glue joint (400). Sealant is arranged between the spacer block (401) and the glue blocking strip (402). The spacer block (401) is used to connect the end wall frame (100) and the first end corner post (102), and at the same time reduce the amount of sealant in the glue joint (400). The glue blocking strip (402) is used to seal the sealant.

7. The end wall according to claim 6, characterized in that, On the connection side of the end wall frame (100) and the first end corner post (102), and on the connection side of the first end corner post (102) and the end wall frame (100), a sunk structure (107) is provided. A hand-laid skin (108) is arranged on the sunk structure (107). The hand-laid skin (108) is fixedly connected to the end wall frame (100), the first end corner post (102) and the glue joint (400) respectively. The hand-laid skin (108) is used to hide the glue joint (400).

8. The end wall according to claim 1, wherein The first end wall panel (200) is internally provided with a first cross beam (209), a second cross beam (210), a third cross beam (211), a first longitudinal beam (212) and a second longitudinal beam (213); The first cross beam (209) is fixedly connected to the first longitudinal beam (212) and the inner skin (202) respectively. The first longitudinal beam (212) is fixedly connected to the second cross beam (210). The second cross beam (210) is fixedly connected to the second longitudinal beam (213) and the outer skin (203) respectively. The second longitudinal beam (213) is fixedly connected to the third cross beam (211). The third cross beam (211) is fixedly connected to the inner skin (202); The filling material (204) is arranged between the first longitudinal beam (212) and the second longitudinal beam (213); The inner skin (202) is provided with a plurality of inner skin sunk platforms (2021), and the plurality of inner skin sunk platforms (2021) are used to provide wire tying space.

9. The end wall according to claim 1, wherein, The first end wall panel (200) is internally provided with a carbon fiber beam (214). The carbon fiber beam (214) is fixedly connected to the inner skin (202), the outer skin (203) and the filling material (204) respectively. Foam and metal blocks are arranged on the carbon fiber beam (214); Mounting holes (2141) are provided on both the outer skin (203) and the carbon fiber beam (214), and the mounting holes (2141) are used for mounting the car body jumper wire.

10. The end wall according to claim 1, characterized in that, It further includes: A plurality of rivets; Both the first door upright post (104) and the first end corner post (102) are fixedly connected to the end wall panel frame (201) by the plurality of rivets.

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