A double-layer front wall structure

Abstract

The utility model discloses a double -deck front wall structure, include: lower surrounding structure, lower surrounding structure sets up between engine room and passenger cabin, lower surrounding structure includes buffer part one and extension plate no.

Description

Technical Field

[0001] This utility model relates to the field of automotive front bulkhead technology, and in particular to a double-layer front bulkhead structure. Background Technology

[0002] As a key component of the automobile body, the front bulkhead serves as a crucial barrier separating the engine compartment from the passenger compartment, occupying a central position in the overall vehicle performance system. Its technological evolution is deeply intertwined with the development of the automotive industry. With the automotive industry's ever-increasing demands for safety and comfort, the functions of the front bulkhead have gradually expanded. In terms of safety, it must effectively disperse and absorb collision energy during a collision through its rational structural design and material properties, preventing excessive intrusion of components such as the engine into the passenger compartment and providing necessary survival space for occupants. In terms of comfort, it must possess excellent sound and heat insulation properties, blocking the transmission of noise and heat generated by engine operation into the passenger compartment, improving the quietness and temperature comfort of the ride.

[0003] Existing automotive front bulkhead panels, such as CN223014743U, disclose a high-strength automotive front bulkhead panel, including a front bulkhead center crossbeam. A front bulkhead upper panel is fixedly connected to the top of the center crossbeam, and a front bulkhead lower panel is fixedly connected to the bottom of the center crossbeam. The vertical height of the side of the front bulkhead upper panel is lower than the vertical height of the side of the front bulkhead lower panel, and both the front bulkhead upper panel and the front bulkhead lower panel are inclined. The advantages are: the front bulkhead upper panel, the front bulkhead center crossbeam, and the front bulkhead lower panel form a hook shape, thus possessing higher strength and being able to withstand stronger impact forces. Furthermore, when the engine moves backward, the front bulkhead center crossbeam supports the top of the engine, causing the engine to tilt downward along the front bulkhead lower panel, thereby guiding the engine to the bottom of the vehicle, improving safety. The front bulkhead lower panel is arched, allowing it to provide stronger support for the engine during the downward movement, thus reducing the deformation of the front bulkhead lower panel. In the existing technology, the traditional single-layer front bulkhead structure is still used. Under this design mode, the components at the front end of the front bulkhead need to be installed one by one at the final assembly station. Not only are the assembly processes scattered and cumbersome, but also the timing and spatial layout of the installation of each component are limited, which is not conducive to the implementation of the modular assembly concept and makes it difficult to achieve efficient production.

[0004] Therefore, those skilled in the art urgently need to provide a double-layer front panel structure for modular assembly. Utility Model Content

[0005] The purpose of this invention is to provide a double-layer front panel structure to solve the problems existing in the prior art.

[0006] A double-layer front bulkhead structure includes: a lower bulkhead structure; the lower bulkhead structure is disposed between the engine compartment and the passenger compartment; the lower bulkhead structure includes a buffer section and an extension plate; the bottom end of the buffer section is integrally formed with the extension plate; the extension plate has multiple through holes; the side ends of the buffer section and the side and bottom ends of the extension plate are respectively fixed to the vehicle body; and an upper bulkhead structure; the upper bulkhead structure is disposed inside the buffer section and is detachably connected to the buffer section; the side ends of the upper bulkhead structure are fixed to the vehicle body, and the top end is connected to and sealed to the lower end of the windshield.

[0007] Preferably, the buffer section is a hollow structure, and its inner wall facing the engine compartment and the crew compartment is fixed with multiple reinforcing ribs.

[0008] Preferably, the upper structure includes a second buffer section and a second extension plate; the second buffer section is a hollow structure, with the second extension plate integrally formed at its top; the second buffer section is detachably connected to the first buffer section; the side ends of the second buffer section and the second extension plate are fixed to the vehicle body; the top end of the second extension plate is connected to and sealed to the windshield.

[0009] Preferably, the second buffer section has two fixing plates fixed to its side wall facing the engine compartment; one fixing plate is located at the upper end of the first buffer section, and the other fixing plate is located at the lower end of the first buffer section; the fixing plate has a plurality of threaded holes I; the top plate and bottom plate of the first buffer section each have a plurality of threaded holes II corresponding to the threaded holes I; the threaded holes I and the threaded holes II are threadedly connected by bolts.

[0010] Preferably, a baffle is fixed to one side wall of the buffer section facing the engine compartment.

[0011] Preferably, the second buffer section is provided with sound-absorbing cotton inside.

[0012] Compared with the prior art, the present invention provides a double-layer front panel structure, which has the following beneficial effects: By dividing the front bulkhead into a lower bulkhead structure and an upper bulkhead structure, and then assembling the components of the lower bulkhead structure and the upper bulkhead structure together, modular assembly is achieved. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1This is a cross-sectional structural diagram of the present invention.

[0015] Wherein: 1 is the lower enclosure structure; 101 is the first buffer section; 102 is the first extension plate; 2 is the upper enclosure structure; 201 is the second buffer section; 202 is the second extension plate; 3 is the reinforcing rib; 4 is the fixing plate; 5 is the bolt; 6 is the baffle; 7 is the sound-absorbing cotton; 8 is the steering gear. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] like Figure 1 As shown, a double-layer front bulkhead structure includes: a lower bulkhead structure 1; the lower bulkhead structure 1 is disposed between the engine compartment and the passenger compartment; the lower bulkhead structure 1 includes a buffer section 101 and an extension plate 102; the bottom end of the buffer section 101 is integrally formed with the extension plate 102; the extension plate 102 has multiple through holes; the side ends of the buffer section 101 and the side ends and bottom ends of the extension plate 102 are respectively fixed to the vehicle body; an upper bulkhead structure 2; the upper bulkhead structure 2 is disposed inside the buffer section 101 and is detachably connected to the buffer section 101; the side ends of the upper bulkhead structure 2 are fixed to the vehicle body, and the top end is connected to and sealed to the lower end of the windshield.

[0019] In this utility model, the modular assembly mentioned in the background art refers to assembling multiple parts of the product into complete functional modules in the module unit before installing these modules as a whole onto the main body of the product, rather than installing each part separately during the final assembly stage. In this application, the lower structure 1 is defined as a functional bearing module, with the front end connected to the steering gear 8, brake master cylinder, and air conditioning components, etc., and the upper structure 2 is defined as a connecting and sealing module, with the upper end sealed to the windshield glass using a rubber strip. The multiple through holes opened in the extension plate 102 are used for the passage of components such as the steering gear, and the wiring harness enters the passenger compartment through the through holes to connect to the instrument panel.

[0020] In this utility model, the front panel is divided into a lower structure 1 and an upper structure 2. After pre-assembling the components of the lower structure 1 and the upper structure 2, they are then assembled together to achieve modular assembly.

[0021] In one exemplary embodiment, such as Figure 1 As shown, the buffer section 101 is a hollow structure, and its inner wall facing the engine compartment and crew compartment is fixed with multiple reinforcing ribs 3.

[0022] In this invention, the buffer section 101 is a flat rectangular body with a height less than its length and width, and its height is oriented towards the engine compartment and the passenger compartment. Multiple reinforcing ribs 3 are staggered on the inner wall of the buffer section 101 facing the engine compartment and the passenger compartment; specifically, three are arranged on the inner wall facing the engine compartment and two on the inner wall facing the passenger compartment. When a frontal collision occurs in the engine compartment, the hollow structure of the buffer section 101 forms a buffer zone, effectively reducing the distance the lower structure 1 intrudes into the passenger compartment. Simultaneously, the reinforcing ribs 3 inside the buffer section 101 effectively resist bending and torsional deformation, distributing the load of the cavity area to the multiple reinforcing ribs 3, preventing excessive local stress that could lead to cracking. Especially when subjected to large impacts, the reinforcing ribs 3 allow for more even force transmission.

[0023] In one exemplary embodiment, such as Figure 1 As shown, the upper structure 2 includes a second buffer section 201 and an extension plate 202; the second buffer section 201 is a hollow structure, and the extension plate 202 is integrally formed at the top; the second buffer section 201 is detachably connected to the first buffer section 101; the side ends of the second buffer section 201 and the extension plate 202 are fixed to the vehicle body; the top of the extension plate 202 is connected to and sealed to the windshield.

[0024] In this invention, the second buffer section 201 is generally a flat rectangular body, with a height smaller than its length and width. Its height is oriented towards the engine compartment and the passenger compartment, and it is closer to the passenger compartment than the first buffer section 101. The double-layer hollow structure formed by the second buffer section 201 and the first buffer section 101 reduces the heat transferred from the engine to the passenger compartment. In the event of a frontal collision, the hollow layer of the lower structure 1 can absorb energy through controllable deformation, while the hollow layer of the upper structure 2 acts as a second energy-absorbing barrier, consuming collision energy in layers, reducing the transmission of impact force to the cockpit, and providing more survival space for the occupants.

[0025] In one exemplary embodiment, such as Figure 1 As shown, two fixing plates 4 are fixed to the side wall of the buffer section 201 facing the engine compartment; one fixing plate 4 is located at the upper end of the buffer section 101, and the other fixing plate 4 is located at the lower end of the buffer section 101; the fixing plate 4 has multiple threaded holes 1; the top plate and bottom plate of the buffer section 101 have multiple threaded holes 2 corresponding to the threaded holes 1; the threaded holes 1 and the threaded holes 2 are threadedly connected by bolts 5.

[0026] In this utility model, the bottom surface of the upper fixing plate 4 is in close contact with the top surface of the buffer part 101, and the top surface of the lower fixing plate 4 is in close contact with the bottom surface of the buffer part 101; the bolts 5 pass through any opposite threaded hole 1 and threaded hole 2 in sequence for threaded connection and fastening.

[0027] In one exemplary embodiment, such as Figure 1 As shown, a baffle 6 is fixed to the side wall of the buffer section 101 facing the engine compartment. In this invention, the baffle 6 is used to limit the height of the component connected to the front end of the buffer section 101.

[0028] In one exemplary embodiment, such as Figure 1 As shown, sound-absorbing cotton 7 is installed inside the buffer section 201. In this invention, the sound-absorbing cotton 7 is made of polyester fiber sound-absorbing cotton or polyurethane foam to reduce the noise transmitted from the engine to the passenger compartment.

[0029] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A double-layer front panel structure, characterized in that, include: Lower enclosure structure (1); the lower enclosure structure (1) is disposed between the engine compartment and the crew compartment; The lower structure (1) includes a buffer section (101) and an extension plate (102); the bottom end of the buffer section (101) is integrally formed with the extension plate (102); the extension plate (102) has multiple through holes. The side end of the buffer section (101) and the side and bottom ends of the extension plate (102) are respectively fixed to the vehicle body; Upper structure (2); the upper structure (2) is disposed inside the buffer part (101) and is detachably connected to the buffer part (101); the side end of the upper structure (2) is fixed to the vehicle body, and the top end is connected to and sealed to the lower end of the windshield.

2. The double-layer front panel structure according to claim 1, characterized in that: The buffer section (101) is a hollow structure, and its inner wall facing the engine compartment and the crew compartment is fixed with a number of reinforcing ribs (3).

3. The double-layer front panel structure according to claim 2, characterized in that: The upper structure (2) includes a second buffer section (201) and a second extension plate (202). The second buffer section (201) has a hollow structure, and the second extension plate (202) is integrally formed at the top. The second buffer section (201) is detachably connected to the first buffer section (101); the side ends of the second buffer section (201) and the second extension plate (202) are fixed to the vehicle body; the top end of the second extension plate (202) is connected to and sealed to the windshield.

4. The double-layer front panel structure according to claim 3, characterized in that: The buffer section 2 (201) has two fixing plates (4) fixed to its side wall facing the engine compartment. One of the fixing plates (4) is located at the upper end of the first buffer section (101), and the other fixing plate (4) is located at the lower end of the first buffer section (101); The fixing plate (4) has multiple threaded holes; the top plate and bottom plate of the buffer part (101) have multiple threaded holes corresponding to the threaded holes. The threaded hole one and the threaded hole two are threadedly connected by a bolt (5).

5. A double-layer front panel structure according to claim 1, characterized in that: The buffer section 1 (101) has a baffle (6) fixed to its side wall facing the engine compartment.

6. A double-layer front panel structure according to claim 4, characterized in that: The buffer section 2 (201) is provided with sound-absorbing cotton (7).

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