Front cabin structure and automobile
By designing a triangular load transfer path with the projection of the cavity structure and the front longitudinal beam in the front cabin structure, the problem of increasing the body weight in the prior art is solved, and the effect of lightweight and safety improvement of the vehicle body is achieved.
Patent Information
- Application Number
- CN202421945025.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-12
AI Technical Summary
When the prior art enhances the structural strength of the front cabin, the weight of the vehicle body increases, which cannot meet the needs of lightweighting of the vehicle body, thereby affecting the range of the vehicle.
By designing the front nacelle structure, the first cavity structure is formed by using the inner reinforcement plate and the fender packaging plate, the outer reinforcement plate and the front wheel cover form a second cavity structure, and it is enclosed with the projection of the front longitudinal beam in the transverse direction to form a triangle to form a complete load force transmission path.
This design not only strengthens the overall strength of the car body, reduces the use of body strength reinforcement, meets the need for lightweight body, but also improves the collision resistance between the front and side of the car, and enhances the safety and stability of the car.
Smart Images
Figure CN222946858U_ABST
Abstract
Description
[Technical field]
[0001] The present application relates to the technical field of vehicle body structures, and in particular to a front cabin structure and a vehicle. [Background technology]
[0002] With the development of new energy vehicles, the industry has higher requirements for vehicle safety, lightweight performance and collision safety indicators, in order to increase the vehicle's cruising range and driving safety. Usually, the safety of the vehicle can be enhanced by strengthening the strength of the front cabin structure. Specifically, in the conventional front cabin structure, the two ends of the front anti-collision beam are screwed to the left front longitudinal beam and the right front longitudinal beam, and reinforcement plates are set at the front anti-collision beam, the left front longitudinal beam and the right front longitudinal beam, so as to increase the strength of the front cabin structure.
[0003] However, the above-mentioned method of adding a reinforcing plate to enhance the structural strength of the front cabin will increase the weight of the vehicle body, which does not meet the demand for lightweight vehicle body. The increased weight of the vehicle body will lead to a decrease in the cruising range of the vehicle. [Contents of the utility model]
[0004] In view of this, the present application provides a front cabin structure and a car, which improve the strength of the front cabin structure while meeting the demand for lightweight car body.
[0005] In a first aspect, the present application provides a front nacelle structure, comprising a front crossbeam, a front longitudinal beam, a front wheel cover and a fender packaging plate, wherein the front crossbeam, the front wheel cover and the fender packaging plate are all connected to the front longitudinal beam to form a frame structure; the front nacelle structure further comprises:
[0006] An inner reinforcing plate of the packaging plate, wherein the inner reinforcing plate of the packaging plate is connected to the fender packaging plate and encloses the fender packaging plate to form a first cavity structure;
[0007] The front wheel cover outer reinforcement plate is connected to the front wheel cover and encloses a second cavity structure, and the first cavity structure, the second cavity structure and the projection of the front longitudinal beam in the lateral direction enclose a triangle.
[0008] In some embodiments, a third cavity structure is provided in the front longitudinal beam, and the projections of the first cavity structure, the second cavity structure and the third cavity structure in the transverse direction enclose a triangle.
[0009] In some embodiments, the first cavity structure, the second cavity structure and the third cavity structure are connected in sequence.
[0010] In some embodiments, the number of the front wheel housing, the fender packaging panel, the front longitudinal beam, the packaging panel inner reinforcement plate and the front wheel housing outer reinforcement plate are all two.
[0011] In some embodiments, the front wheel cover is a panel structure and is arranged inside the frame structure.
[0012] In some embodiments, the frame structure is disposed bilaterally symmetrically with respect to a center line of the vehicle body.
[0013] In some embodiments, the front wheel housing, the front wheel housing outer reinforcement plate, and the front longitudinal beam are connected by welding.
[0014] In some embodiments, the fender packaging panel, the packaging panel inner reinforcement plate, and the front longitudinal beam are connected by welding.
[0015] In some embodiments, the front longitudinal beam is connected to the front cross beam by screwing.
[0016] In a second aspect, the present application provides an automobile, comprising a body, wherein the body comprises a floor, a side panel, a cross beam, a longitudinal beam, an A-pillar, a B-pillar, a C-pillar, a door sill, a roof, a rear cabin structure and the front cabin structure described in any one of the first aspects.
[0017] The above technical solution has at least the following beneficial effects:
[0018] The front engine compartment structure provided by the present application comprises a first cavity structure formed by the inner reinforcement plate of the packaging panel and the fender packaging panel, and a second cavity structure formed by the outer reinforcement plate of the front wheel cover and the front wheel cover, which strengthen the overall strength of the vehicle body while reducing the use of vehicle body strength reinforcement parts, meet the demand for lightweight vehicle body, and ensure the cruising range; moreover, the first cavity structure, the second cavity structure and the projection of the front longitudinal beam in the lateral direction form a triangle, which can form a complete load transmission path, improve the collision resistance of the front and side of the vehicle, and thereby improve the safety and stability of the vehicle.
Brief Description of the Drawings
[0019] Figure 1 A schematic structural diagram of the front cabin structure provided for this application.
[0020] Figure ID:
[0021] 1. Front cross beam; 2. Front longitudinal beam; 3. Front wheel cover; 4. Fender packaging plate; 5. Packaging plate inner reinforcement plate; 6. Front wheel cover outer reinforcement plate. [Specific implementation method]
[0022] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.
[0023] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0024] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.
[0025] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0026] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.
[0027] With the development of new energy vehicles, the industry has higher requirements for vehicle safety, lightweight performance and collision safety indicators, in order to increase the vehicle's cruising range and driving safety. Usually, the safety of the vehicle can be enhanced by strengthening the strength of the front cabin structure. Specifically, in the conventional front cabin structure, the two ends of the front anti-collision beam are screwed to the left front longitudinal beam and the right front longitudinal beam, and reinforcement plates are set at the front anti-collision beam, the left front longitudinal beam and the right front longitudinal beam, so as to increase the strength of the front cabin structure.
[0028] However, the above-mentioned method of adding a reinforcing plate to enhance the structural strength of the front cabin will increase the weight of the vehicle body, which does not meet the demand for lightweight vehicle body. The increased weight of the vehicle body will lead to a decrease in the cruising range of the vehicle.
[0029] In view of this, the present application provides a front cabin structure. Figure 1 For the structural diagram of the front cabin structure provided for this application, please refer to Figure 1 The front cabin structure includes a front cross beam 1, a front longitudinal beam 2, a front wheel cover 3 and a fender packaging plate 4. The front cross beam 1, the front wheel cover 3 and the fender packaging plate 4 are all connected to the front longitudinal beam 2 to form a frame structure; the front cabin structure also includes:
[0030] The inner reinforcing plate 5 of the packaging plate is connected with the fender packaging plate 4 and encloses the first cavity structure;
[0031] The outer reinforcement plate of the front wheel cover 3 is connected to the front wheel cover 3 and encloses a second cavity structure, and the first cavity structure, the second cavity structure and the projection of the front longitudinal beam 2 in the lateral direction enclose a triangle.
[0032] In the above scheme, the front cabin structure provided by the present application, the inner reinforcement plate 5 of the packaging plate and the fender packaging plate 4 form a first cavity structure, and the outer reinforcement plate of the front wheel cover 3 and the front wheel cover 3 form a second cavity structure, which strengthens the overall strength of the vehicle body while reducing the use of vehicle body strength reinforcement parts, meets the demand for lightweight vehicle body, and ensures the cruising range; and, the first cavity structure, the second cavity structure and the projection of the front longitudinal beam 2 in the lateral direction form a triangle, which can form a complete load transmission path, improve the front and side collision resistance of the car, and thus improve the safety and stability of the car.
[0033] In some embodiments, the body of the automobile includes a floor, a side panel, a cross beam, a longitudinal beam, an A-pillar, a B-pillar, a C-pillar, a door sill, a roof, a rear cabin structure, and a front cabin structure.
[0034] The floor is located at the bottom of the car body and is used to provide a mounting platform for installing seats, engines and other supporting components. The side panels are located on both sides of the car body and extend from the front to the rear of the car body. They are used to provide longitudinal rigidity and are one of the main load-bearing structures of the car body. The crossbeam is located at the bottom of the car body and is arranged along the width direction of the car body (lateral direction). It is used to provide lateral rigidity and connect the structural members on the left and right sides. The longitudinal beam is located at the bottom of the car body and is arranged along the length direction of the car body. It is used to provide longitudinal rigidity and is one of the main load-bearing structures of the vehicle. The A-pillar, B-pillar and C-pillar are located on the side of the car body to support the roof and doors, provide structural rigidity and protect the passenger compartment. The sill is located under the door and is used to connect the door and the body to provide structural support. It is also the track of the door. The roof is located above the body, covering the passenger compartment, and is used to provide structural rigidity and protect the passenger compartment. The rear cabin structure is located at the rear of the car body, including the rear longitudinal beam, rear cross beam and other structural members of the rear cabin, which are used to support rear components such as the fuel tank, exhaust system, etc.
[0035] The front cabin structure is located at the front of the vehicle body and is used to support the engine, gearbox and other front components while providing collision protection. It includes a front crossbeam 1, a front longitudinal beam 2, a front wheel cover 3 and a fender encapsulation plate 4. Among them:
[0036] The front cross beam 1 is located at the front of the vehicle body and arranged along the width direction of the vehicle body. It is usually made of high-strength steel, aluminum alloy or other lightweight materials. It is used to provide lateral rigidity and enhance the overall rigidity of the vehicle body. It also plays a supporting role, supporting the engine, gearbox, suspension system and other components. At the same time, the front cross beam 1 can also provide an installation point for fixing the engine bracket, suspension system, cooling system and other components.
[0037] The front longitudinal beam 2 is located at the front of the vehicle body and arranged along the length direction of the vehicle body. It is usually made of high-strength steel, aluminum alloy or other lightweight materials. It is used to provide longitudinal rigidity and is one of the main load-bearing structures of the vehicle. It also plays a supporting role, supporting the engine, gearbox and other front components. At the same time, the front longitudinal beam 2 can also provide mounting points for fixing engine brackets, suspension systems and other components.
[0038] The front wheel cover 3 is a plate structure, located inside the wheel, close to the tire and the wheel hub, hidden on the inner side of the fender, usually made of plastic or rubber material, and is used to provide protection to prevent mud, stones and other objects from splashing out and protect the internal parts of the car body; it also plays a supporting role, providing additional support and enhancing the rigidity of the wheel arch area.
[0039] The fender encapsulation panel 4 is located on the inner side of the fender, and usually refers to the covering panel inside the fender, which is usually made of plastic, composite material or metal, and is used to provide protection to protect the internal components of the fender from damage by external factors such as splashing mud and sand; at the same time, it can also provide additional sealing effect to reduce noise and wind resistance.
[0040] In some embodiments, the front cross beam 1, the front wheel cover 3, and the fender packaging plate 4 are all connected to the front longitudinal beam 2 to form a frame structure. The connection method of the front cross beam 1, the front wheel cover 3, the fender packaging plate 4 and the front longitudinal beam 2 can be selected according to actual needs, such as welding, fastener connection, etc., which is not limited here. Preferably, the front longitudinal beam 2 and the front cross beam 1 are connected by screwing, the front wheel cover 3 and the front longitudinal beam 2 and the fender packaging plate 4 are connected by welding, and the fender packaging plate 4 and the front longitudinal beam 2 are connected by welding.
[0041] In the present application, the frame structure is arranged symmetrically about the center line of the vehicle body, that is, the number of the front wheel cover 3, the fender packaging plate 4, the front longitudinal beam 2, the packaging plate inner reinforcement plate 5 and the front wheel cover 3 outer reinforcement plate are two, and are symmetrically arranged on both sides of the vehicle body.
[0042] In order to further enhance the strength of the frame structure and enhance the collision resistance, the front cabin structure also includes an inner reinforcement plate 5 of the packaging plate and an outer reinforcement plate of the front wheel housing 3 .
[0043] The inner reinforcing plate 5 of the packaging plate is arranged on the inner side of the fender packaging plate 4, connected with the fender packaging plate 4 and enclosed to form a first cavity structure. It can be understood that the first cavity structure can improve the overall rigidity of the frame structure and reduce deformation; at the same time, the cavity structure can improve collision safety and protect the passenger compartment and internal components. In the present application, the inner reinforcing plate 5 of the packaging plate is connected to the inner packaging plate of the fender and the front longitudinal beam 2 by welding.
[0044] The front wheel housing 3 outer reinforcement plate is arranged on the outside of the front wheel housing 3, connected with the front wheel housing 3 and enclosed to form a second cavity structure. It can be understood that the second cavity structure can improve the overall rigidity of the frame structure and reduce deformation; at the same time, the cavity structure can improve collision safety and protect the passenger compartment and internal components. In this application, the front wheel housing 3 outer reinforcement plate is connected to the front wheel housing 3 and the front longitudinal beam 2 by welding.
[0045] It should be noted that the first cavity structure and the second cavity structure arranged above the front longitudinal beam 2 are connected structures, and the connected structure can effectively disperse the force generated by the collision and reduce the peak stress borne by the single cavity structure.
[0046] The first cavity structure formed, the first cavity structure, the second cavity structure and the projection of the front longitudinal beam 2 in the transverse direction enclose a triangle. It can be understood that the triangular structure is very stable due to its geometric characteristics. When the car collides, a complete load transmission path is formed, which can effectively disperse the force generated by the collision, reduce the deformation of the frame structure, and improve the collision resistance of the front and side of the car, thereby improving the safety and stability of the car.
[0047] Furthermore, a third cavity structure is provided in the front longitudinal beam 2, and the projections of the first cavity structure, the second cavity structure and the third cavity structure in the transverse direction enclose a triangle, and the first cavity structure, the second cavity structure and the third cavity structure are sequentially connected. It can be understood that the first cavity structure, the second cavity structure and the third cavity structure are interconnected, which can reduce stress concentration, thereby improving the fatigue resistance of the frame structure, and the frame structure has higher safety performance.
[0048] In actual application, the inner reinforcement plate of the packaging panel and the fender packaging plate form a first cavity structure, and the outer reinforcement plate of the front wheel cover and the front wheel cover form a second cavity structure, which strengthens the overall strength of the car body while reducing the use of body strength reinforcements, meeting the needs of lightweight body and ensuring cruising range; and the first cavity structure, the second cavity structure and the projection of the front longitudinal beam in the lateral direction form a triangle, which can form a complete load transmission path, improve the car's front and side collision resistance, and thereby improve the car's safety and stability.
[0049] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made according to the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present invention.
Claims
1. A front cabin structure, characterized in that: The invention comprises a front cross beam (1), a front longitudinal beam (2), a front wheel cover (3) and a fender packaging plate (4), wherein the front cross beam (1), the front wheel cover (3) and the fender packaging plate (4) are all connected to the front longitudinal beam (2) to form a frame structure; the front cabin structure also comprises: A packaging plate inner reinforcement plate (5), the packaging plate inner reinforcement plate (5) is connected to the fender packaging plate (4) and encloses to form a first cavity structure; A front wheel cover (3) outer reinforcement plate, the front wheel cover (3) outer reinforcement plate is connected to the front wheel cover (3) and encloses a second cavity structure, and the first cavity structure, the second cavity structure and the projection of the front longitudinal beam (2) in the transverse direction enclose a triangle.
2. The front cabin structure according to claim 1, characterized in that: A third cavity structure is provided in the front longitudinal beam (2), and the projections of the first cavity structure, the second cavity structure and the third cavity structure in the transverse direction enclose a triangle.
3. The front cabin structure according to claim 2, characterized in that: The first cavity structure, the second cavity structure and the third cavity structure are connected in sequence.
4. The front cabin structure according to claim 1, characterized in that: The number of the front wheel cover (3), the fender packaging plate (4), the front longitudinal beam (2), the packaging plate inner reinforcement plate (5) and the front wheel cover (3) outer reinforcement plate are all two.
5. The front cabin structure according to claim 1, characterized in that: The front wheel cover (3) is a plate structure and is arranged inside the frame structure.
6. The front cabin structure according to claim 1, characterized in that: The frame structure is arranged in left-right symmetry with respect to the center line of the vehicle body.
7. The front cabin structure according to claim 1, characterized in that: The front wheel cover (3), the outer reinforcement plate of the front wheel cover (3), and the front longitudinal beam (2) are connected by welding.
8. The front cabin structure according to claim 1, characterized in that: The fender packaging plate (4), the packaging plate inner reinforcement plate (5), and the front longitudinal beam (2) are connected by welding.
9. The front cabin structure according to claim 1, characterized in that: The front longitudinal beam (2) and the front cross beam (1) are connected by screw connection.
10. An automobile, characterized in that: The vehicle body comprises a floor, a side panel, a crossbeam, a longitudinal beam, an A-pillar, a B-pillar, a C-pillar, a door sill, a roof, a rear cabin structure and a front cabin structure as claimed in any one of claims 1 to 9.