CN214325230U - Front floor middle channel structure for automobile and front floor assembly with same - Google Patents

Abstract

The utility model discloses a preceding floor assembly that is arranged in leading floor of car access structure and has it, an access structure includes in leading floor for the car: the middle channel framework comprises a middle channel front reinforcing cross beam and two middle channel longitudinal beams, the middle channel front reinforcing cross beam is welded between the two middle channel longitudinal beams, the front ends of the middle channel longitudinal beams are welded on the front cabin cross beam, and the rear ends of the middle channel longitudinal beams are welded on the front seat rear cross beam. According to the utility model discloses a channel structure has good anti deformability about in facing side impact and front side impact in the front floor for car, and structural strength is high, and preparation simple process is rationally distributed.

Description

Front floor middle channel structure for automobile and front floor assembly with same

Technical Field

The utility model belongs to the technical field of the vehicle part technique and specifically relates to a preceding floor assembly that is arranged in passageway structure and has it of preceding floor of car.

Background

In the prior art, the well passageway assembly of electric automobile adopts steel sheet punching press and welding process to constitute, and stamping forming technology is complicated, and welding process is complicated, and part quantity is many, and the well passageway assembly weight of formation is heavy, is unfavorable for the lightweight of automobile body, is unfavorable for increasing electric automobile's continuation of the journey mileage, and the part of steel sheet preparation needs the electrophoresis, and anticorrosive requirement is high, is unfavorable for reducing the cost, is unfavorable for energy-concerving and environment-protective, has restricted electric automobile's popularization and application.

Disclosure of Invention

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a channel structure in preceding floor for car, a channel structure has good anti deformability in the preceding floor for car, and structural strength is high, and preparation simple process is rationally distributed.

The utility model also provides a preceding floor assembly of car of access structure in the preceding floor that has above-mentioned a car.

According to the utility model discloses a access structure includes in front floor for car: the middle channel framework comprises a middle channel front reinforcing cross beam and two middle channel longitudinal beams, the middle channel front reinforcing cross beam is welded between the two middle channel longitudinal beams, the front ends of the middle channel longitudinal beams are welded on the front cabin cross beam, and the rear ends of the middle channel longitudinal beams are welded on the front seat rear cross beam.

According to the utility model discloses a strengthening beam before the passageway in the preceding floor for car through setting up for among the front floor, the passageway mechanism has good anti deformability when the collision in the face of the left and right sides, through with two in the channel longerons and front deck crossbeam and front seat back end rail welded fastening, make among the front floor passageway mechanism have good anti deformability when the collision in the face of front side, structural strength is high, preparation simple process, rationally distributed.

In addition, according to the utility model discloses a channel structure in front floor for car, can also have following additional technical characterstic:

in some embodiments of the present invention, the front floor middle passage structure for an automobile further includes: the middle channel body and the middle channel extension plate are both formed by punching aluminum plates, and are welded between the two middle channel longitudinal beams along the extension direction of the middle channel longitudinal beams.

Optionally, the center tunnel main body and the center tunnel extension plate are welded to two ends of the center tunnel front reinforcement beam at intervals, and both abut against the upper surface of the center tunnel front reinforcement beam.

In some embodiments of the present invention, the center channel front reinforcement beam is located on the same straight line with the front seat left front beam and the front seat right front beam.

In other embodiments of the present invention, two of the center tunnel stringers are formed of an inner hollow pipe body having a cross section in a shape of "ri", and two of the center tunnel stringers are inclined toward a side close to each other in a downward-upward direction.

In some embodiments of the present invention, two of the side of the center channel longitudinal beam facing away from each other are all formed with a welding edge on which the front floor body is adapted to be welded.

In some embodiments of the present invention, the front reinforcing beam of the center channel is formed by a hollow pipe body having a cross section in a shape of "ri", and end surfaces of both ends of the front reinforcing beam of the center channel are welded to the side surfaces of the side where the center channel longitudinal beams are close to each other.

The utility model also provides a preceding floor assembly of car of access structure in the preceding floor that has above-mentioned a car.

According to the utility model discloses preceding floor assembly of car includes: a front floor frame, the front floor frame comprising: in any of the above embodiments, the front floor center tunnel structure, the front floor left side member, the front floor right side member, the front seat left front cross member, and the front seat right front cross member for an automobile, the front seat left front cross member is welded between the front floor center tunnel structure and the front floor left side member, and the front seat right front cross member is welded between the front floor center tunnel structure and the front floor right side member.

According to the utility model discloses preceding floor assembly, through with in the preceding floor channel structure, preceding floor left longeron, preceding floor right longeron, front seat left side front crossbeam and front seat right front crossbeam pass through welded fastening, make preceding floor skeleton have comparatively firm frame construction, and channel structure has good anti deformability and lighter weight in the preceding floor, make preceding floor assembly have two anti deformability when bearing front side collision and side collision, structural strength is high, accord with the lightweight development demand of vehicle.

Optionally, the front floor skeleton further comprises: and two ends of the front seat rear cross beam are respectively welded with the front floor left longitudinal beam and the front floor right longitudinal beam.

Optionally, the front floor assembly of the automobile further comprises: the front floor comprises a front floor right front body, a front floor left front body, a front floor right middle body and a front floor rear body, and the front floor right front body, the front floor left front body, the front floor right middle body and the front floor rear body are welded in an installation area defined by the front floor framework.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a tunnel structure in a front floor for an automobile according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a front floor skeleton of a tunnel structure in a front floor for an automobile according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;

fig. 5 is a schematic structural diagram of a front floor assembly according to an embodiment of the present invention.

Reference numerals:

100: a tunnel structure in a front floor for an automobile;

1: a middle channel skeleton; 11: a center tunnel front reinforcement beam; 12: a center channel stringer; 13: welding edges;

2: a middle channel body; 3: a middle channel extension plate;

1000: a front floor assembly;

101, front floor left longitudinal beam; 102: a front floor right stringer; 103: a front seat left front cross member; 104: a front seat right front cross member; 105: a front seat rear cross member; 106: a front floor right front body; 107: a front floor left front body; 108: a front floor right middle body; 109: the front floor is a left middle body.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

A tunnel structure 100 in a front floor for an automobile according to an embodiment of the present invention is described below with reference to fig. 1 to 5.

As shown in fig. 1 and 2, a tunnel structure 100 in a front floor for an automobile according to an embodiment of the present invention includes: the middle channel framework 1, specifically, the middle channel framework 1 includes a middle channel front reinforcing beam 11 and two middle channel longitudinal beams 12, the middle channel front reinforcing beam 11 is welded between the two middle channel longitudinal beams 12, that is, the two middle channel longitudinal beams 12 are respectively disposed at the left and right ends of the middle channel front reinforcing beam 11, the left end of the middle channel front reinforcing beam 11 and the middle channel longitudinal beam 12 located at the left side are fixedly connected by welding, and the right end of the middle channel front reinforcing beam 11 and the middle channel longitudinal beam 12 located at the right side are fixedly connected by welding.

Therefore, when the middle channel framework 1 is subjected to collision outside two middle channel longitudinal beams 12, the middle channel front reinforcing beam 11 can be well supported between the two middle channel longitudinal beams 12, so that collision force borne by the middle channel longitudinal beam 12 on one side to be collided can be well dispersed through the middle channel front reinforcing beam 11, the deformation amplitude of the middle channel longitudinal beam 12 on one side to be collided is reduced, therefore, when the middle channel framework 1 is collided at the left side and the right side, the collision invasion amount of the middle channel longitudinal beam 12 can be effectively reduced, the structural influence of side collision on the channel structure 100 in the front floor is reduced, the structural layout is reasonable, and the structural strength is high.

Further, the front ends of the two center tunnel longitudinal beams 12 are welded on a front cabin cross beam (not shown), and the rear ends are welded on a front seat rear cross beam 105, that is, the distance between the front ends of the two center tunnel longitudinal beams 12 is fixed by welding the front ends of the two center tunnel longitudinal beams 12 and the front cabin cross beam, and the distance between the rear ends of the two center tunnel longitudinal beams 12 is fixed by welding the rear ends of the two center tunnel longitudinal beams 12 and the front seat rear cross beam 105, so that at least the distance between the two center tunnel longitudinal beams 12 comprises: well preceding strengthening beam 11 of passageway, three fixed connection positions of front deck crossbeam and front seat rear beam 105, when increasing two well passageway longeron 12 connection stability, when well passageway skeleton 1 suffered side collision or extrudees, three fixed knot construct can support two well passageway longerons 12 betterly, side collision power can be better transmits to fixed knot structure department through well passageway longeron 12, in order to reach the dispersion of collision power, avoid side collision power to concentrate on well passageway longeron 12, thereby the deformation range that the collision of the left and right sides or extrusion lead to weakens, and structural strength is high.

On the other hand, through the welding of two center tunnel longitudinal beams 12 with the front cabin crossbeam, front seat rear crossbeam 105, can realize better the connection of well passageway skeleton 1 and front cabin assembly, wherein can understand, front cabin crossbeam, front seat rear crossbeam 105 and center tunnel skeleton 1 set up perpendicularly on the horizontal plane, that is to say, the assembly welding back whole body of front cabin crossbeam, well passageway skeleton 1 and front seat rear crossbeam 105 forms "worker" style of calligraphy structure, therefore, when the front side of front cabin crossbeam receives the collision or extrudes, the impact can be better transmitted to the automobile body rear through well passageway skeleton 1, and disperse the impact through well passageway skeleton 1 and front seat rear crossbeam 105, in order to reduce the influence of front side impact to the front cabin crossbeam, thereby reduce the collision deformation of front cabin crossbeam position, the overall arrangement is reasonable.

According to the utility model discloses a channel structure 100 in preceding floor for car, through strengthening the crossbeam 11 before the passageway in setting up for channel structure 100 has good anti deformability when the collision in the face of the left and right sides in the preceding floor, through with two well channel longerons 12 and front deck crossbeam and front seat back beam 105 welded fastening, make channel structure 100 have good anti deformability when the collision in the face of front side in the preceding floor, structural strength is high, simple manufacture simple process, and is rationally distributed.

In some examples, MIG welding is adopted for welding, so that the deformation of a welded part can be reduced well, and the welding effect is guaranteed.

In some embodiments of the present invention, the channel structure 100 in the front floor further comprises: well passageway main part 2 and well passageway extension plate 3, well passageway main part 2 and well passageway extension plate 3 are formed by aluminum plate punching press, and the plasticity is high, and the manufacturing process is also simpler in comparison with steel, can keep the lightweight of front floor well channel structure 100 simultaneously, accords with the development demand of vehicle lightweight.

In some examples, the middle channel main body 2 and the middle channel extension plate 3 are both formed by stamping the aluminum plate 5052H32, the drawing depth is shallow, and the stamping difficulty is low.

Further, referring to fig. 1, the center tunnel main body 2 and the center tunnel extension plate 3 are welded between the two center tunnel longitudinal beams 12 along the extension direction of the center tunnel longitudinal beam 12, so that the welding and fixing connection positions between the two center tunnel longitudinal beams 12 are further increased, and the deformation resistance of the two center tunnel longitudinal beams 12 is further improved, which is not described herein again, so that the front floor center tunnel structure 100 can better reduce the collision intrusion amount on the front side and the left and right sides.

On the other hand, the possibility of relative back-and-forth movement between the two center channel longitudinal beams 12 can be well reduced, for example, when the acting force borne by the center channel longitudinal beam 12 on the left side is large, the center channel longitudinal beam 12 on the left side has a tendency of moving backwards relative to the center channel longitudinal beam 12 on the right side, and through the joint action of the center channel main body 2, the center channel front reinforcing cross beam 11 and the center channel extension plate 3, the acting force can be well dispersed, so that the moving amplitude of the center channel longitudinal beam 12 on the left side is reduced, and the shape integrity and the deformation resistance of the center channel framework 1 are ensured.

Optionally, the center tunnel main body 2 and the center tunnel extension plate 3 are separately welded at two ends of the center tunnel front reinforcing beam 11 and abutted against the upper surface of the center tunnel front reinforcing beam 11, as shown in fig. 1, the center tunnel main body 2 is arranged near the front end of the center tunnel framework 1, the lower surface of the center tunnel main body 2 is fixed with the front ends of the upper surfaces of the two center tunnel longitudinal beams 12 and the center tunnel front reinforcing beam 11 by welding, the center tunnel extension plate 3 is arranged near the rear end of the center tunnel framework 1, the lower surface of the center tunnel extension plate 3 is fixed with the rear ends of the upper surfaces of the two center tunnel longitudinal beams 12 and the center tunnel front reinforcing beam 11 by welding, which reduces the welding difficulty of the center tunnel main body 2 and the center tunnel extension plate 3, therefore, the center tunnel main body 2 and the center tunnel extension plate 3 can better seal the upper surface of the center tunnel framework 1, and ensure the overall coverage of the connection structure between the two center tunnel longitudinal beams 12, in other words, each position of the two center channel longitudinal beams 12 in the front-back direction has a fixed connection structure, so that the stability of the connection structure between the two center channel longitudinal beams 12 and the center channel front reinforcing cross beam 11 is further enhanced, and the deformation resistance of the center channel framework 1 is further improved.

In other embodiments of the present invention, the center tunnel front reinforcement beam 11 is aligned with the front seat left front beam 103 and the front seat right front beam 104, as shown in fig. 5, the extension directions of the center tunnel front reinforcement cross member 11, the front seat left front cross member 103, and the front seat right front cross member 104 are parallel to the direction from left to right, the front seat left front cross member 103 is welded to the left side of the center tunnel side member 12 on the left side, the front seat right front cross member 104 is welded to the right side of the center tunnel side member 12 on the right side, after the assembly and welding of the middle tunnel framework 1, the front seat left front cross beam 103 and the front seat right front cross beam 104 are completed, the welding positions of the front-seat left front cross member 103 and the center tunnel front reinforcement cross member 11 with the center tunnel side member 12 on the left side are at the same position in the front-rear direction, and the welding positions of the front-seat right front cross member 104 and the center tunnel front reinforcement cross member 11 with the center tunnel side member 12 on the right side are at the same position in the front-rear direction.

Therefore, when the right side of the front seat right front cross beam 104 and the left side of the front seat left front cross beam 103 are collided or extruded, the acting force can be better transmitted to the front reinforcing cross beam 11 of the middle channel, so that the side collision deformation is reduced.

In some embodiments of the present invention, as shown in fig. 3, the two middle channel longitudinal beams 12 are each formed by an inner hollow tube body having a cross section in a shape of "ri", so that the weight of the middle channel frame 1 can be reduced well on the premise of ensuring the structural strength of the middle channel longitudinal beams 12, thereby keeping the lightweight of the channel structure 100 in the front floor.

Further, the two middle channel longitudinal beams 12 are inclined toward the side close to each other in the direction from bottom to top, that is, the middle channel longitudinal beam 12 on the left side is inclined toward the right side gradually in the direction from bottom to top, and the middle channel longitudinal beam 12 on the right side is inclined toward the left side gradually in the direction from bottom to top, that is, the welding surfaces between the middle channel longitudinal beam 12 and the middle channel front reinforcing cross beam 11, between the front seat left front cross beam 103, and between the middle channel longitudinal beam 104 are inclined planes, so that the welding areas between the middle channel longitudinal beam 12 and the middle channel front reinforcing cross beam 11, between the front seat left front cross beam 103, and between the front seat right front cross beam 104 can be increased well.

It can be understood that the increase of the welding area can not only increase the connection stability well, but also increase the stress area effectively, thereby reducing the impact pressure of the welding area, that is, the welding area can have better structural strength, when the middle channel framework 1 bears the extrusion or collision of the left side and the right side, the side collision intrusion amount of the middle channel longitudinal beam 12 can be reduced well, and the anti-deformation capability is strong.

In some examples, the middle channel longitudinal beam 12 is formed by extruding a raw material 6082T6 high-strength aluminum alloy, and the middle channel longitudinal beam 12 made of an aluminum profile is good in rigidity and light in weight, so that the weight of the middle channel longitudinal beam 12 meets the requirement of light weight of the whole vehicle.

In a specific embodiment of the utility model, two well passageway longerons 12 all are formed with welding limit 13 towards the one side of keeping away from each other, preceding floor body is suitable for the welding on welding limit 13, that is to say, the left side that lies in left well passageway longeron 12 is formed with welding limit 13, as shown in fig. 1 and fig. 3, through extending the bottom side of well passageway longeron 12 towards the left side, thereby form the welding limit 13 that surpasss well passageway longeron 12 left surface, therefore, in the welding process of carrying out preceding floor, welding limit 13 can be better from the bottom hold the preceding floor, be convenient for carry out subsequent welding process, and, welding limit 13 has certain width in the left and right directions, make the contact surface between well passageway longeron 12 and the preceding floor connect the increase, thereby guarantee the stable connection of preceding floor and well passageway longeron 12 after the welding, structural stability is higher. The structure of the center channel longitudinal beam 12 on the right side and the structure of the center channel longitudinal beam 12 on the left side are symmetrically arranged with respect to the center channel front reinforcing cross beam 11, and will not be described in detail here.

In other embodiments of the present invention, as shown in fig. 4, the front reinforcing beam 11 of the middle passageway is formed by a hollow tube body having a cross section in the shape of "ri", so that the weight of the middle passageway frame 1 can be reduced well on the premise of ensuring the structural strength of the front reinforcing beam 11 of the middle passageway, thereby keeping the lightweight of the front passageway structure 100 in the front floor. Furthermore, the end faces of the two ends of the middle channel front reinforcing beam 11 are welded on the side faces of the two middle channel longitudinal beams 12 close to one side of each other, namely, the left end face of the middle channel front reinforcing beam 11 and the right side face of the middle channel longitudinal beam 12 located on the left side are fixed through welding, and the right end face of the middle channel front reinforcing beam 11 and the left side face of the middle channel longitudinal beam 12 located on the right side are fixed through welding, so that the middle channel framework 1 is fixedly connected, the welding process is simple, and the neatness of the appearance is guaranteed by welding the two end faces of the middle channel front reinforcing beam 11 well.

In some examples, the front reinforcing beam 11 of the middle channel is formed by extruding a raw material 6082T6 high-strength aluminum alloy, and the front reinforcing beam 11 of the middle channel made of an aluminum profile is good in rigidity and light in weight, so that the weight of the front reinforcing beam 11 of the middle channel meets the requirement of light weight of the whole vehicle.

The utility model discloses a front floor assembly 1000 of car that has foretell be used for access structure 100 in front floor of car is still provided.

According to the utility model discloses preceding floor assembly 1000 of car includes: a front floor frame.

Specifically, the front floor skeleton includes: the front floor center tunnel structure 100, the front floor left side member 101, the front floor right side member 102, the front seat left front cross member 103, the front seat right front cross member 104 for the automobile in any of the above embodiments, the front seat left front cross member 103 is welded between the front floor center tunnel structure 100 and the front floor left side member 101, the front seat right front cross member 104 is loaded between the front floor center tunnel structure 100 and the front floor right side member 102, that is, the right end of the front seat left front cross member 103 is fixedly connected to the left side of the front floor center tunnel structure 100 by welding, the left end of the front seat left front cross member 103 is fixedly connected to the right side of the front floor left side member 101 by welding, the front floor left side member 101 is located at the leftmost end of the front floor frame, the left end of the front seat right front cross member 104 is fixedly connected to the right side of the front floor center tunnel structure 100 by welding, the right end of the front seat right cross member 104 is fixedly connected to the left side of the front floor right side member 102 by welding, the front floor right longitudinal beam 102 is located at the rightmost end of the front floor frame.

Therefore, the front floor left side frame 101 and the front floor right side frame 102 are respectively arranged at the leftmost side and the rightmost side of the front floor assembly 1000, so that when a vehicle mounted with the front floor assembly 1000 is collided from the left side, the front floor left side frame 101 can better transmit collision force to the position of the front floor middle channel structure 100 through the front seat left front cross beam 103 and disperse the collision force, and the front floor middle channel structure 100 can better resist deformation capacity, so that the collision invasion amount of the front floor left side frame 101 can be better reduced, the structural strength is high, and when the vehicle is collided from the right side, the transmission mode is basically consistent with the force transmission mode, and the description is omitted.

According to the utility model discloses preceding floor assembly 1000, through with in the preceding floor channel structure 100, preceding floor left side longeron 101, preceding floor right side longeron 102, front seat left side front crossbeam 103 and front seat right front crossbeam 104 pass through welded fastening, make preceding floor skeleton have comparatively firm frame construction, and channel structure 100 has good anti deformability and lighter weight in the preceding floor, make preceding floor assembly 1000 have two anti deformability when bearing front side collision and side collision, structural strength is high, accord with the lightweight development demand of vehicle.

In some embodiments of the present invention, the front floor frame further comprises: the front seat rear cross beam 105 and the two ends of the front seat rear cross beam 105 are respectively welded with the front floor left side beam 101 and the front floor right side beam 102, that is, the right end of the front seat rear cross beam 105 is welded and fixed with the left side surface of the front floor right side beam 102, and the left end of the front seat rear cross beam 105 is welded and fixed with the right side surface of the front floor left side beam 101, so that the connection between the front floor left side beam 101 and the front floor right side beam 102 can be well realized, and the rear end of the front seat rear cross beam 105 and the rear end of the front floor middle channel structure 100 are welded and fixed, so that the front floor left side beam 101, the front floor right side beam 102, the front floor middle channel structure 100, the front seat left front cross beam 103, the front seat right front cross beam 104 and the front seat rear cross beam 105 form a complete frame structure, thereby ensuring the structural integrity and strength of the front floor frame.

In other embodiments of the present invention, the front floor assembly 1000 further comprises: front floor, in particular front floor comprising: front floor right front body 106, front floor left front body 107, front floor right middle body 108, front floor left middle body 109.

Specifically, a front floor right front body 106, a front floor left front body 107, a front floor right middle body 108, and a front floor left middle body 109 are welded in a mounting area defined by a front floor frame, as shown in fig. 5, the front floor right front body 106 is welded in a mounting area defined by a front floor right side member 102, a front seat right front cross member 104, and a front end of a front floor center tunnel structure 100, the front floor left front body 107 is welded in a mounting area defined by a front floor left side member 101, a front seat left front cross member 103, and a front end of a front floor center tunnel structure 100, the front floor right middle body 108 is welded in a mounting area defined by a front floor right side member 102, a front seat right front cross member 104, a front floor center tunnel structure 100 rear end, and a front seat rear cross member 105, the front floor left middle body 109 is welded in a mounting area defined by a front floor left side member 101, a front seat left front cross member 103, a front floor center tunnel structure 100 rear end, and a front seat rear cross member 105, the front floor can be fixedly connected with the front floor better through the front floor framework, so that the procedures of installation and the like of automobile components such as seats can be better carried out on the front floor, and the front floor can be better supported in the front floor framework, so that the angle among the components of the front floor framework is kept, and the structural strength of the front floor assembly 1000 is improved.

Other constructions and operations of the tunnel structure 100 in the front floor for the automobile according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "some embodiments," "optionally," "further," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A front floor tunnel structure for an automobile, comprising:

the middle channel framework comprises a middle channel front reinforcing cross beam and two middle channel longitudinal beams, the middle channel front reinforcing cross beam is welded between the two middle channel longitudinal beams, the front ends of the middle channel longitudinal beams are welded on the front cabin cross beam, and the rear ends of the middle channel longitudinal beams are welded on the front seat rear cross beam.

2. The front floor tunnel structure for automobile according to claim 1, further comprising:

the middle channel body and the middle channel extension plate are both formed by punching aluminum plates, and are welded between the two middle channel longitudinal beams along the extension direction of the middle channel longitudinal beams.

3. The front floor tunnel structure for an automobile according to claim 2, wherein the center tunnel main body and the center tunnel extension plate are welded at intervals to both ends of the center tunnel front reinforcement cross member, respectively, and are in abutment with an upper surface of the center tunnel front reinforcement cross member.

4. The front floor tunnel structure for automobile according to claim 1, wherein the tunnel front reinforcement cross member is in the same line with the front seat left and right front cross members.

5. The front floor tunnel structure for an automobile according to claim 1, wherein both of said center tunnel side members are each constituted by an internally hollow pipe body having a "herringbone" shape in cross section, and both of said center tunnel side members are inclined in a direction from bottom to top toward sides close to each other.

6. The front floor tunnel structure for an automobile according to claim 1, wherein both sides of the center tunnel side members facing away from each other are formed with welding rims to which the front floor body is adapted to be welded.

7. The front floor tunnel structure for an automobile according to claim 1, wherein the center tunnel front reinforcement cross member is formed of an internally hollow pipe body having a cross section in a shape of a letter "ri", and end faces of both ends of the center tunnel front reinforcement cross member are welded to side faces of the two center tunnel side members on sides close to each other, respectively.

8. A front floor assembly for an automobile, comprising: a front floor frame, the front floor frame comprising:

the front floor center tunnel structure for an automobile, the front floor left side member, the front floor right side member, the front seat left front cross member, and the front seat right front cross member according to any one of claims 1 to 7, the front seat left front cross member being welded between the front floor center tunnel structure and the front floor left side member, the front seat right front cross member being welded between the front floor center tunnel structure and the front floor right side member.

9. The front floor assembly of an automobile of claim 8, wherein the front floor frame further comprises: and two ends of the front seat rear cross beam are respectively welded with the front floor left longitudinal beam and the front floor right longitudinal beam.

10. The front floor assembly of an automobile of claim 8, further comprising:

the front floor comprises a front floor right front body, a front floor left front body, a front floor right middle body and a front floor rear body, and the front floor right front body, the front floor left front body, the front floor right middle body and the front floor rear body are welded in an installation area defined by the front floor framework.

Images