CN118025334A

CN118025334A - Front cabin structure of vehicle body and vehicle

Info

Publication number: CN118025334A
Application number: CN202211358944.7A
Authority: CN
Inventors: 刘腾涌; 闫军飞; 梁大荣; 谢长春; 全毅
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2024-05-14

Abstract

The embodiment of the application discloses a front cabin structure of a vehicle body. The front cabin structure of the vehicle body comprises a front roof beam; the A columns are arranged at intervals along the width direction of the vehicle; and the front coaming beam assembly. The two ends of the front cross beam of the ceiling are respectively connected with the two A columns, the two ends of the front panel cross beam assembly are respectively connected with the two A columns, the front cross beam of the ceiling, the two A columns and the front panel cross beam form a first annular structure, and the front panel cross beam assembly is provided with a front panel cross cavity extending along the width direction of the vehicle. The embodiment of the application has the technical effects that the lower pressure from the vehicle roof direction can be improved by forming the double-ring structure; for the front collision force, the force bearing effect can be improved; for offset collision, when the upper side beam is stressed, the upper side beam is prevented from being inclined inwards by the offset collision force, and two collided vehicles can deviate from each other at the collision position.

Description

Front cabin structure of vehicle body and vehicle

Technical Field

The application belongs to the technical field of vehicles, and particularly relates to a front cabin structure of a vehicle body and a vehicle.

Background

With the year-by-year increase of the automobile conservation amount, the safety problem is more and more valued by consumers, the automobile testing mechanism is newly increased and the test scoring standard is updated, the current offset collision test is more and more strict, the scoring standard is higher, and the requirements on the automobile structure are higher and higher.

The passenger compartment is an important structure of the vehicle in which a user sits. High-risk crash situations of vehicles, including offset and forward collisions, present a significant challenge to the structural reliability of the passenger compartment. How to improve the safety of the passenger compartment to the occupants in such collisions is an important housing for the person skilled in the art. On the other hand, the windshield is provided in front of the passenger compartment, and the size and angle of the windshield and the front structure of the passenger compartment affect the comfort and the visual field of the passengers. Those skilled in the art will also need to consider these factors in making improvements to the passenger compartment.

At present, the conventional structure for coping with the situation such as 25% overlap offset collision is mostly related to collision prevention Liang Jiachang and reinforcing members added on the collision prevention beam, but the intrusion of the passenger cabin part during collision cannot be effectively reduced, and the structure related to the passenger cabin is required to be updated and designed, so that the safety and the comfort are improved.

Disclosure of Invention

An object of the embodiment of the application is to provide a vehicle body front cabin structure and a novel technical scheme of a vehicle, which can solve the problem that a small offset bumps against a vehicle body front cabin frame with a reinforced structure.

According to a first aspect of an embodiment of the present application, there is provided a vehicle body front cabin structure. The vehicle body front cabin structure includes:

A ceiling front cross member;

the A columns are arranged at intervals along the width direction of the vehicle;

A dash cross-member assembly;

The two ends of the front cross beam of the ceiling are respectively connected with the two A columns, the two ends of the front cross beam assembly of the front panel are respectively connected with the two A columns, the front cross beam of the ceiling, the two A columns and the front cross beam of the front panel form a first annular structure, and the front cross beam assembly of the front panel is provided with a front cross cavity extending along the width direction of the vehicle.

Optionally, the vehicle wheel cover further comprises a wheel cover upper side beam, wherein the wheel cover upper side beam is respectively connected with the front coaming beam assembly and the A column.

Further optionally, the dash panel beam assembly further comprises an upper beam and a dash panel upper section, and the upper beam and the dash panel upper section are combined into the dash panel transverse cavity.

Further optionally, the wheel cover upper side beam is connected with an upper side beam rear sealing plate;

The end part of the upper cross beam is directly and fixedly connected with the wheel cover upper side beam, and the end part of the upper section of the front coaming is fixedly connected with the upper side beam rear sealing plate.

Further alternatively, the wheel cover roof side rail is provided with a wheel cover roof side rail cavity extending in the vehicle front-rear direction;

The projection of the dash panel lateral cavity in the vehicle width direction at least partially overlaps with the projection of the wheel house roof side rail cavity in the vehicle width direction.

Optionally, the method further comprises:

a front windshield installation side beam, two of which are arranged at intervals along the width direction of the vehicle;

A front windshield lower cross member;

The two ends of the front cross beam of the ceiling are fixedly connected with the two front windshield installation side beams respectively, the two ends of the lower cross beam of the front windshield are fixedly connected with the two front windshield installation side beams respectively, and the front cross beam of the ceiling, the two front windshield installation side beams and the lower cross beam of the front windshield form a second annular structure.

Further alternatively, at least part of the front windshield-mounting side member is located in front of the a-pillar in the vehicle front-rear direction.

Further optionally, at least a part of the lower cross beam of the front windshield is of a C-shaped structure, and an opening direction of the C-shaped structure faces towards a passenger cabin of the vehicle.

Further optionally, an a-pillar cavity is formed in the a-pillar;

a side beam cavity is formed in the front windshield installation side beam.

Still optionally, the front windshield lower cross beam comprises a wheel cover upper side beam, a front windshield lower cross beam and a front windshield installation side beam, wherein the wheel cover upper side beam is fixedly arranged above the wheel cover upper side beam, the end part of the front windshield lower cross beam is connected to the connecting plate, and the front windshield lower cross beam is fixedly connected with the front windshield installation side beam through the connecting plate.

Further alternatively, the lower end of the front windshield installation side beam is connected to the connecting plate, the A column comprises a first connecting part and a second connecting part, the front windshield installation side beam is connected with the first connecting part, and the connecting plate is connected with the second connecting part;

The A column, the connecting plate and the front windshield installation side beams are combined to form a third annular structure, and the third annular structure is a triangular frame.

Further alternatively, the a-pillar has an a-pillar lower section, and the a-pillar lower section is fixedly connected with the wheel cover upper edge beam directly.

According to a second aspect of an embodiment of the present application, there is provided a vehicle having the vehicle body front cabin structure as set forth in any one of the above.

The application has the technical effects that: the front coaming beam assembly structure at the front part of the passenger cabin is reinforced, and forms an annular frame structure together with the A column, so that the structural reliability of the frame at the front part of the passenger cabin is improved.

Other features of the present application and its advantages will become apparent from the following detailed description of exemplary embodiments of the application, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic perspective view of a front cabin structure of a vehicle body according to an embodiment of the present application;

FIG. 2 is a schematic view of section B-B of FIG. 1;

Fig. 3 is a schematic side view of a front cabin structure of a vehicle body according to an embodiment of the present application;

FIG. 4 is a schematic cross-sectional F-F view of bitmap 3;

fig. 5 is a schematic view of section E-E of fig. 3.

Wherein: 135. wheel cover upper edge beam; 1350. the wheel cover upper side beam cavity; 137. a roof rail rear seal plate; 16. a dash cross-member assembly; 161. a side beam is arranged on the front windshield; 162. a column A; 1621. a first connection portion; 1622. a second connecting portion; 163. a front windshield lower cross member; 1630. a windshield lower cross member cavity; 164. a connecting plate; 165. a ceiling front cross member; 166. an upper section of the dash panel; 167. an upper cross beam; 1676. a dash panel transverse cavity; 171. the lower section of the column A; x, a first cyclic structure; y, a second cyclic structure.

Detailed Description

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Referring to fig. 1 to 5, according to a first aspect of an embodiment of the present application, there is provided a vehicle body front cabin structure.

The vehicle body front cabin structure includes:

a ceiling front cross member 165;

an a pillar 162, two of the a pillars 162 being arranged at intervals in the width direction of the vehicle;

a dash cross-member assembly 16;

The two ends of the roof front cross member 165 are respectively connected with the two a pillars 162, the two ends of the dash cross member assembly 16 are respectively connected with the two a pillars 162, the roof front cross member 165, the two a pillars 162 and the dash cross member assembly 16 form a first annular structure X, wherein the dash cross member assembly 16 is provided with a dash cross member cavity 1676 extending in the vehicle width direction, as shown in fig. 2. .

Specifically, the first annular structure X formed by the two a-pillars 162, the ceiling front cross member 165 and the dash cross member can provide stable support for the front windshield and surrounding areas thereof, satisfying the mounting strength and rigidity of the front windshield. The transverse cavity 1676 of the front panel arranged in the transverse beam assembly 16 of the front panel can effectively improve the deformation resistance of the transverse beam assembly 16 of the front panel, has good absorption effect on impact energy generated by collision, especially offset collision, and can improve the safety of the vehicle in the actual running process. When an impact force is applied to the dash cross beam assembly from the side direction, the dash cross cavity 1676 can provide sufficient buffering and absorbing effects for transverse energy, and the roof front cross beams and the dash cross beam assembly which are arranged at intervals in the front-rear direction and in the up-down direction enable the first annular structure X to be obliquely arranged, so that when the impact force from the front is received, the annular force transmission structure can be effectively realized, the structure of the junction part of the front cabin and the passenger cabin is improved, and further the invasion of the front collision to the passenger cabin and the damage to the passenger cabin are reduced.

It is understood that the front-rear direction of the vehicle is the longitudinal direction of the vehicle, and the width direction of the vehicle is the lateral direction of the vehicle.

According to the technical scheme, the passenger cabin is protected by utilizing the improved structure of the front wall plate cross beam, and particularly, the front wall plate cross beam assembly is provided with the cavity extending along the width direction, so that the structural strength of the front cabin part can be effectively enhanced, and the front wall plate cross beam assembly can effectively transfer force to two A columns of force transfer values; and, the end of the a-pillar 162 is directly or indirectly connected to the dash cross-member. And the reliability of the whole frame of the A column and the front coaming beam is improved. The first annular structure X formed in the front region of the passenger compartment can effectively strengthen the structural reliability of the front face of the passenger compartment.

Optionally, the vehicle body front cabin structure further includes a wheel cover roof rail 135, and the wheel cover roof rail 135 is connected to the dash cross-member assembly 16 and the a-pillar 162, respectively, as shown in fig. 1 and 3.

Specifically, the rear section of the wheel cover roof rail 135 is connected to the middle section of the a-pillar 162, the front section extends forward along the vehicle, and the wheel cover roof rail is also connected to the dash cross-member assembly 16, as a transitional connection region connecting the dash cross-member assembly 16 and the a-pillar 162 as one, providing a stable and secure connection. The wheel cover roof side rail 135 itself has a side impact protection function, and the structure thereof can assist the first annular structure X to improve the reliability of the overall structure in front of the passenger compartment.

In a preferred implementation of the present embodiment, the dash cross-member assembly 16 optionally further includes an upper cross-member 167 and a dash upper segment 166, as shown in fig. 2, 4, and 5. The upper cross member 167 and the dash upper segment 166 are joined as the dash cross-cavity 1676 described above.

Specifically, the dash cross-member assembly 16 has a cavity structure formed by the upper cross-member 167 and the dash upper section 166, so that the structural strength is ensured, the weight is reduced, the manufacturing process is simpler and easier, the manufacturing cost is low, and the dash cross-member cavity formed by the upper cross-member 167 and the dash upper section 166 can play a role of buffering pressure. More specifically, the dash cross-member cavity can effectively improve the deformation resistance of the dash cross-member assembly 16, and has a good absorption effect on impact energy generated by collision, particularly offset collision, so as to improve the safety of the vehicle in the actual running process. When encountering impact deformation, the cavity 1676 between the upper beam 167 and the dash upper segment 166 can provide space for deformation and absorbing energy after deformation, so that the risk of damage to the passenger compartment and the front windshield is reduced, and meanwhile, the formed cavity structure can also enlarge the cross-sectional area of the dash cross-beam assembly 16, so that the force transmission effect can be improved.

In a preferred implementation of the present embodiment, optionally, the wheel cover roof rail 135 has a roof rail rear seal 137 above it, as shown in figure 4,

The end of the upper beam 167 is directly and fixedly connected with the wheel cover upper side beam 135, and the end of the dash panel upper section 166 is fixedly connected with the upper side beam rear sealing plate 137 of the wheel cover upper side beam 135.

Specifically, referring to fig. 3, the roof side rail rear seal 137 is mainly used as a transitional connection structure between the roof side rail 167, the dash panel upper section 166 and the wheel cover roof side rail 135, and the three are firmly connected together. The distance from the upper rim beam 135 of the wheel cover to one end in the Z direction can correspond to the height of the dash cross-member assembly 16, and by forming the upper rim rear seal plate 137 on the upper rim beam 135, it helps to increase the complexity of the connection structure here, forming more cavities. For example, as shown in fig. 4, the end of the upper beam 167 may be directly connected to the wheel cover roof rail 135, while the dash upper segment 166 is fixedly connected to the roof rail rear seal plate 137, so that there is poor space between the chambers, and the force transfer is more complex, which is more advantageous for absorbing impact energy. And also helps to transfer force to the A column, achieving force dispersion.

In a preferred implementation of the embodiment of the present application, the wheel cover roof rail 135 is optionally provided with a wheel cover roof rail cavity 1350 extending in the vehicle front-rear direction, as shown in fig. 4. The projection of the dash cross-cavity 1676 in the vehicle width direction at least partially overlaps with the projection of the wheel house roof side rail cavity 1350 in the vehicle width direction.

Specifically, the wheel cover roof side rail cavity 1350 can strengthen the structural strength of the front side portion of the vehicle, and has a good impact force absorbing effect on a collision, particularly an offset collision, suffered by the vehicle during running, and can effectively transmit the collision force from the front side to the rear of the vehicle. The projection of the wheel cover rocker cavities 1350 and the dash panel lateral cavities 1676 at least partially overlap, increasing the absorption of impact from both lateral and longitudinal directions. The projection coincidence of the two cavities enables the force to be better transferred to other structures, and the force transfer between the two cavities can be better realized. In the actual running process of the vehicle, the vibration or impact force received by the roof side rail can be at least partially transmitted to the transverse cavity of the front coaming through the roof side rail cavity, and the roof side rail cavity and the transverse cavity are combined to further improve the overall anti-seismic and anti-impact performance of the vehicle, so that the stability and safety of the vehicle in the running process are obviously improved.

In a preferred implementation of the embodiment of the present application, optionally, the vehicle front cabin structure further includes:

A front windshield-mounted side member 161, the two front windshield-mounted side members 161 being arranged at intervals in the width direction of the vehicle;

a front windshield lower cross member 163;

The two ends of the ceiling front cross member 165 are respectively connected with the two front windshield installation side members 161, the two ends of the front windshield lower cross member 163 are respectively fixedly connected with the two front windshield installation side members 161, and the ceiling front cross member 165, the two front windshield installation side members 161 and the front windshield lower cross member 163 form a second annular structure Y. The first annular structure X and the second annular structure Y are not overlapped, so that the structural strength of the front region of the passenger cabin is further improved, more reliable support is provided for the installation of the windshield glass, and the inclination angle of the glass can be more selected on the premise of ensuring the structural reliability so as to provide a better observation field for a user.

Specifically, referring to fig. 1, the present preferred embodiment can enhance the bearing capacity of the entire vehicle body structure against the downward pressure from the roof direction by combining the first annular structure X with the second annular structure Y. The automobile front bumper has good bearing effect on front impact force suffered by accidental collision; when the upper side beam is stressed, the upper side beam is prevented from being inclined towards the inside of the vehicle by the biasing force, and two crashed vehicles can deviate from each other at the crashed part, so that the safety of the vehicle in the running process is improved, and when the front crashing force is received, the two annular structures can effectively resist the front force, so that the passenger cabin is protected from being damaged, or the invasion to the passenger cabin is reduced.

Alternatively, at least part of the front windshield-mounting side member 161 is located forward of the a-pillar 162 in the vehicle front-rear direction. In the embodiment shown in fig. 1 and 3, most of the structure of the front windshield-mounting side member 161 is located in front of the a-pillar 162, which is used to carry the front windshield. And the rear-located a-pillar provides integral support for the windshield-mounting side sill 161 through the ceiling front rail 165 and dash rail assembly 16. On the other hand, a side windshield may be provided between the front windshield mounting side member 161 and the a-pillar 165, thereby improving the visibility of the user.

Referring to fig. 1 and 3, the front windshield installation side member 161 at least partially positioned in front of the a-pillar 162 can protect the a-pillar 162 when the vehicle is involved in a collision, so as to prevent the a-pillar 162 from being excessively bent into the passenger compartment to seriously injure the life safety of the passenger, thereby improving the safety of the whole vehicle.

In a preferred implementation of the embodiment of the present application, optionally, at least a portion of the lower front windshield rail 163 has a C-shaped structure, and an opening direction of the C-shaped structure faces the passenger compartment of the vehicle, as shown in fig. 2, a front end of the lower front windshield rail 163 has a C-shaped structure. The front windshield lower cross member 163 having a C-shaped structure forms a windshield lower cross member cavity 1630. This is a self-reinforcing structure, and the under-windshield member 163 penetrates a cavity 1630 formed in a half-opening in the vehicle width direction to form the path bottom of the second annular structure Y. Further alternatively, the front windshield lower cross member 163 extends rearward, as shown in fig. 2, and is connected to the cavity 1676 of the second annular structure X.

The bottom of the second annular structure X is a dash panel lower beam assembly. The dash upper segment 166 is snap-fit connected to the dash upper cross-member 167 to form a dash lower cross-member assembly. The two parts pass through from left to right to form a through cavity 1676, which becomes the bottom of the first annular path X. The bottoms of the two annular mounting paths are provided with cavities extending transversely and are connected with each other, so that the protection performance of the front part of the passenger cabin is effectively improved.

The C-shaped structure of the lower cross member 163 of the front windshield can play a good role in buffering and rebounding impact force when the vehicle encounters a frontal collision or an offset collision, prevent the front cabin of the vehicle from being excessively deformed to cause serious injury to passengers, and improve the driving safety of the vehicle.

In a preferred implementation of the present embodiment, optionally, the a-pillar 162 has an a-pillar cavity formed therein, and an extending direction of the a-pillar cavity is along an extending direction of the a-pillar 162;

The front windshield-mounting side member 161 has a side member cavity formed therein, and the extending direction of the side member cavity is along the extending direction of the front windshield-mounting side member 161.

Specifically, the A-pillar cavity and the front windshield installation side beam cavity have good shock absorption effect, so that the pressure bearing capacity of the vehicle roof can be improved, and the impact force can be fully absorbed when the vehicle roof is impacted. Particularly low, the front windshield mounting side members 161 and the a-pillars 162 are formed as longitudinal structures of the annular structures X and Y, respectively, and the cavities therein facilitate upward transmission of the forces received by the lower structures of the dash cross-member assembly 16, the wheel cover roof side rail 135, etc., to the ceiling front cross-member 165, thereby exerting the overall cushioning effect of the annular structures X and Y, releasing the impact forces. The forces are more easily dispersed and absorbed than without the cavity. The design prevents passengers in the passenger cabin from being seriously injured, so that the running stability and the safety of the vehicle are improved.

The cavity structures are arranged in the ceiling front cross beam, the A column, the front coaming cross beam assembly 16, the front windshield mounting side beam and the front windshield lower cross beam, so that the first annular structure and the second annular structure formed by connecting the cavity structures are annular structures formed by connecting the cavity structures with each other, the strength of the annular structures can be enhanced, the force transmission sectional area can be increased, the force transmission effect is further improved, and the passenger cabin is further protected.

In a preferred implementation of the present embodiment, a connection plate 164 is optionally also included. As shown in fig. 1, 3 and 4, the connecting plate 164 is fixedly disposed above the wheel cover upper edge beam 135, the end of the front windshield lower cross beam 163 is connected to the connecting plate 164, and the front windshield lower cross beam 163 and the front windshield installation side beam 161 are fixedly connected by the connecting plate 164. In the case where the roof side rail rear seal 137 is provided on the wheel house roof side rail 135, the connection plate 164 is provided above the roof side rail rear seal 137.

The connection plate 164 serves to improve the consistency of connection of the a-pillar and the front windshield mounting side member 161. Specifically, the connecting plate 164 serves as a transitional connection on the one hand, and tightly connects the front windshield lower cross member 163 and the front windshield installation side member 161 together, ensuring the connection strength. On the other hand, the impact and vibration received can be transmitted to the front windshield lower cross beam 163, so that the front windshield installation side beam 161 can play a role in assisting in absorbing impact force when the front windshield lower cross beam 163 is impacted, and the stability, comfort and safety of the whole vehicle in the running process are improved by combining the three components.

Alternatively, as shown in fig. 3, the lower end of the front windshield-mounting side member 161 is connected to the connecting plate 164, and the upper end of the front windshield-mounting side member 161 is connected to the a-pillar 162. The lower end of the a-pillar 162 is connected to the connection plate 164.

The a-pillar 162, the connecting plate 164, and the windshield-mounting side member 161 are combined to form a third annular structure, which is a triangular frame, as shown in fig. 3.

In particular, the design can effectively improve the structural reliability around the front windshield. The risk of damage to the front windshield is reduced. The triangular frame structure can improve the installation strength and rigidity of the front windshield glass. In addition, a side windshield may be provided in the area formed by the connecting plate 164, the front windshield mounting side member 161, and the a-pillar 162, to provide a user with a diagonally forward view. And the part of the structure is not easy to damage due to the support of the triangular frame. According to the technical scheme, the size of the alpha angle can be indirectly adjusted by adjusting the front and rear positions of the front windshield lower beam 163 and the front coaming beam assembly 16, so that the appearance of a vehicle type and the visual field range of a user are adjusted, and the overall structural strength cannot be obviously defective due to the adjustment.

In some embodiments of the present disclosure, the third loop structure can effectively strengthen the structural strength of the first loop structure and the second loop structure at that location, enabling more efficient force transfer, and the loop structure can provide sufficient crush distance, further reducing damage to the passenger compartment.

In a preferred implementation of the present embodiment, the a-pillar 162 optionally includes a first connecting portion 1621 and a second connecting portion 1622, the front windshield-mounting side member 161 is connected to the first connecting portion 1621, and the connecting plate 164 is connected to the second connecting portion 1622. As shown in fig. 3, the upper end of the a-pillar is a first connecting portion 1621 integrally connected to the ceiling front cross member 165 and the front windshield-mounting side member 161. The lower extreme of A post is second connecting portion 1622 for with connecting plate 164 and the structure fixed connection of below, improve basic connection reliability.

In particular, as shown in fig. 3 and 5, the a-pillar 162 may have an a-pillar lower 171, the a-pillar lower 171 being fixedly connected directly to the wheel cover roof rail 135.

Specifically, the lower section of the a-pillar is a first connection portion 1621 or a portion of the a-pillar structure located below the connection plate; the lower section 171 of the a-pillar is fixedly connected with the wheel cover upper side beam 135, namely, the a-pillar 162 is simultaneously fixedly connected with the wheel cover upper side beam 135 and the dash panel beam assembly 16, and the design is such that the a-pillar 162 can effectively play a supporting role between a ceiling and the wheel cover upper side beam. When the A column receives impact pressure from the wheel cover upper side beam, acting force can be effectively transferred to the vehicle ceiling and the front coaming beam assembly 16, and the pressure and the impact force received by the vehicle body front cabin structure can be effectively solved by combining the shock absorption effect of the front coaming horizontal cavity and the upper side beam cavity. The overall up-down through design of the a-pillar 162 and the a-pillar lower section 171 significantly enhances the integrity of the vehicle body front compartment structure. The a-pillar 162 is prevented from being excessively deformed or even broken toward the inside of the passenger compartment when an emergency is encountered during the running of the vehicle, and serious injury is caused to passengers in the passenger compartment.

According to a second aspect of an embodiment of the present application, a vehicle is provided. The vehicle has the vehicle body front cabin structure described in any one of the above.

While certain specific embodiments of the application have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the application. The scope of the application is defined by the appended claims.

Claims

1. A vehicle body front cabin structure, characterized by comprising:

A ceiling front cross member (165);

An A-pillar (162), wherein the two A-pillars (162) are arranged at intervals along the width direction of the vehicle;

A dash cross-member assembly;

the two ends of the ceiling front beam (165) are respectively connected with the two A columns (162), the two ends of the front wall plate beam assembly are respectively connected with the two A columns (162), the ceiling front beam (165), the two A columns (162) and the front wall plate beam form a first annular structure, and the front wall plate beam assembly is provided with a front wall plate horizontal cavity extending along the width direction of the vehicle.

2. The vehicle body front cabin structure according to claim 1, further comprising a wheel cover roof rail (135), the wheel cover roof rail (135) being connected to the dash cross-member assembly and the a-pillar (162), respectively.

3. The vehicle body front compartment structure of claim 2, characterized in that the dash cross-member assembly further comprises a cross-member (167) and a dash upper section (166), the cross-member (167) and the dash upper section (166) being combined into the dash cross-cavity.

4. A vehicle body front cabin structure according to claim 3, wherein the wheel house roof side rail (135) is connected to a roof side rail rear seal plate (137);

The end part of the upper beam (167) is directly and fixedly connected with the wheel cover upper side beam (135), and the end part of the front coaming upper section (166) is fixedly connected with the upper side beam rear sealing plate (137).

5. A vehicle body front cabin structure according to claim 3, wherein the wheel house roof side rail (135) is provided with a wheel house roof side rail cavity extending in the vehicle front-rear direction;

The projection of the dash cross-member cavity in the vehicle width direction at least partially overlaps with the projection of the wheel house roof side rail cavity in the vehicle width direction.

6. The vehicle front compartment structure according to claim 1, characterized by further comprising:

a front windshield-mounting side member (161), the two front windshield-mounting side members (161) being arranged at an interval in the width direction of the vehicle;

a front windshield lower cross member (163);

the two ends of the ceiling front cross beam (165) are fixedly connected with the two front windshield installation side beams (161) respectively, the two ends of the front windshield lower cross beam (163) are fixedly connected with the two front windshield installation side beams (161) respectively, and the ceiling front cross beam (165), the two front windshield installation side beams (161) and the front windshield lower cross beam (163) form a second annular structure.

7. The vehicle body front cabin structure according to claim 6, wherein at least part of the front windshield-mounting side member (161) is located forward of the a-pillar (162) in the vehicle front-rear direction.

8. The vehicle body front cabin structure according to claim 6, wherein at least a part of the structure of the front windshield lower cross member (163) is a C-shaped structure, and an opening direction of the C-shaped structure is directed toward a passenger cabin of the vehicle.

9. The vehicle front compartment structure of claim 6, characterized in that an a-pillar cavity is formed in the a-pillar (162);

A side member cavity is formed in the front windshield installation side member (161).

10. The vehicle body front cabin structure according to claim 6, further comprising a connecting plate (164) fixedly provided above the wheel house roof rail (135), an end portion of the front windshield lower cross member (163) being connected to the connecting plate (164), the front windshield lower cross member (163) and the front windshield mounting side member (161) being fixedly connected by the connecting plate.

11. The vehicle body front cabin structure according to claim 10, characterized in that a lower end of the front windshield-mounting side member (161) is connected to the connecting plate (164), the a-pillar (162) includes a first connecting portion to which the front windshield-mounting side member (161) is connected and a second connecting portion to which the connecting plate (164) is connected;

the A column (162), the connecting plate (164) and the front windshield installation side beam (161) are combined to form a third annular structure, and the third annular structure is a triangular frame.

12. The vehicle front compartment structure of claim 11, characterized in that the a-pillar (162) has an a-pillar lower section (171), the a-pillar lower section (171) being fixedly connected directly to the wheel cover roof rail (135).

13. A vehicle characterized by having the vehicle body front cabin structure according to any one of claims 1 to 12.