CN210634646U - Bending rigidity reinforcing structure for floor beam of electric automobile - Google Patents

Bending rigidity reinforcing structure for floor beam of electric automobile Download PDF

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Publication number
CN210634646U
CN210634646U CN201920824252.4U CN201920824252U CN210634646U CN 210634646 U CN210634646 U CN 210634646U CN 201920824252 U CN201920824252 U CN 201920824252U CN 210634646 U CN210634646 U CN 210634646U
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reinforcement
floor
reinforcing
arched
electric automobile
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CN201920824252.4U
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Chinese (zh)
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魏金辉
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Zhejiang Zero Run Technology Co Ltd
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Zhejiang Leapmotor Technology Co Ltd
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Abstract

The utility model relates to a structure can increase more weight and influence the problem of space comfort level to electric automobile crossbeam reinforcement, discloses an electric automobile floor crossbeam bending stiffness additional strengthening, including well passageway, the both sides of well passageway are equipped with left and right seat crossbeam assembly, and left and right seat crossbeam assembly below is equipped with left and right floor body, still includes the reinforcement, and the reinforcement is rectangular plate-like, and the reinforcement is located well passageway and left and right floor body below. The middle part of the reinforcing piece protrudes upwards to form an arch matching part matched with the bottom surface of the middle channel, and cross grooves are arranged on two sides of the arch matching part and distributed in the arch matching part. The edge of the reinforcing piece is provided with an outward flange which is distributed along the length direction of the reinforcing piece. The reinforcing piece is welded with the seat beam assembly and the floor body in three layers in the overlapping area. The utility model discloses can show the bending resistance who promotes electric automobile floor crossbeam, and the reinforcement structure does not occupy the car inner space, simple to operate, self weight is little.

Description

Bending rigidity reinforcing structure for floor beam of electric automobile
Technical Field
The utility model relates to a structure especially relates to an electric automobile floor crossbeam bending rigidity additional strengthening.
Background
Along with the development of electric automobiles, research and development investment of each automobile manufacturer on the electric automobiles is continuously increased, and the types of the electric automobiles are more and more. Compared with the traditional automobile, in order to make room for a power battery on the floor of the automobile body of the electric automobile, the floor middle longitudinal beam often needs to be translated to two sides of the floor or even cancelled, and the bending resistance of the floor of the white automobile body is greatly influenced due to the change. In order to compensate the influence of the lack of the longitudinal beam on the bending rigidity of the body-in-white, the existing solutions mainly include that the height and the thickness of the seat transverse beam on the upper part of the floor are improved as much as possible, and higher bending resistance is obtained by sacrificing weight and space; although the scheme obviously improves the bending rigidity, more weight and cost are increased, and meanwhile, a high bulge is formed in the middle of the rear row floor, so that the riding comfort of the rear row floor is seriously affected.
For example, a "reinforcing beam for an electric vehicle" disclosed in chinese patent document, publication No. CN203142790U, includes a beam and a reinforcing beam fixedly connected to the beam, the length of the reinforcing beam is equal to the length of the beam, and the cross section of the reinforcing beam is a closed rectangle; the two ends of the reinforcing beam are respectively provided with a connecting frame, one end of each connecting frame is provided with a connector matched with the end portion of the reinforcing beam, the connectors are used for sleeving the connecting frames on the end portions of the reinforcing beam, the other end of each connecting frame is further provided with a connecting surface, and the connecting surface is used for being fixedly connected with a rear longitudinal beam of the electric automobile.
The reinforced beam has the disadvantages that the reinforced beam is arranged above the cross beam, occupies a larger space in the vertical direction, can generate a higher bulge on the floor, and can increase more weight and cost.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome prior art's electric automobile crossbeam reinforcement can increase more weight and influence the problem of space comfort level, provide an electric automobile floor crossbeam bending stiffness additional strengthening, the reinforcement structure can realize that the seat crossbeam middle zone forms a closed cross-section, and the reinforcement structure does not occupy the car inner space, self weight is little.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an electric automobile floor crossbeam bending rigidity additional strengthening, includes well passageway, the both sides of well passageway are equipped with left and right seat crossbeam assembly, left and right seat crossbeam assembly below is equipped with left and right floor body, still includes the reinforcement, the reinforcement is long plate-like, the reinforcement locate well passageway with left and right floor body below. The bending rigidity of the electric automobile floor is mainly born by the seat cross beam, the middle channel and the floor body, and the introduced reinforcing piece can increase the bending rigidity of the cross beam of the electric automobile floor, does not occupy the space in the automobile, and has convenient installation, small self weight and component cost.
The middle part of the reinforcing piece protrudes upwards to form an arched matching part matched with the bottom surface of the middle channel, and the arched matching part extends along the length direction of the reinforcing piece, so that the longitudinal section of the arched matching part is U-shaped. The arch matching part of the reinforcing part is used for adapting to the shape of the connecting part of the reinforcing part and the bottom of the middle channel, and the longitudinal section of the arch matching part is U-shaped because the arch reinforcing bulge is also arranged at the middle part of the bottom of the reinforcing part and used for reinforcing the bending rigidity of the middle channel, so that the reinforcing part and the middle channel can form tight connection to form a whole with a closed section, the reinforcing part and the middle channel are combined into a whole with mixed bending modulus, the separation caused by the bending moment is avoided, and the bending rigidity of the middle channel is remarkably enhanced.
The bottom of the middle channel is provided with a reinforcing protrusion, the reinforcing piece is provided with two cross grooves matched with the reinforcing protrusion, and the cross grooves are distributed on two sides of the arched matching portion. The cross grooves on the two sides of the arch of the bottom of the reinforcing part are used for adapting to the shape of the bottom of a connecting area of the middle channel and the seat beam assembly, are tightly connected with the connecting area, and form a closed section, so that the bending rigidity of the connecting area is enhanced.
The edge of the reinforcing piece is provided with an outward flange which is distributed along the length direction of the reinforcing piece. The flanges are divided into a middle channel flange and a floor flange, the middle channel flange is connected with the plane area at the bottom of the middle channel, the connection rigidity of the reinforcing piece and the middle channel is enhanced, the floor flange is connected with the bottom surface of the floor body, and the connection strength of the reinforcing piece and the floor body is further enhanced.
The length of the reinforcing piece is 450 mm-500 mm. The reinforcing part extends too short, the reinforcing part cannot be connected with the middle channel, the left and right seat cross beams, and the connecting area is too small, so that the connecting strength is low, and the bending rigidity can not be enhanced; when the length of the reinforcing part reaches a certain value, the bending rigidity tends to be saturated, at the moment, the connecting area is too much, the bending rigidity cannot be increased along with the extension of the reinforcing part, the weight burden of the whole vehicle can be increased, and meanwhile, the processing flow is complicated, and time and labor are consumed.
And the three layers of the overlapped areas of the reinforcing piece, the seat beam assembly and the floor body are welded. The reinforcement, the seat beam assembly and the floor body need to be tightly connected, a three-layer welding process is adopted, so that the reinforcement, the seat beam assembly and the floor body completely become a whole body resisting bending, no gap exists between formed section layers, the bending modulus of the whole body is the mixed bending modulus, and the bending resistance effect is good. And the welding connection is adopted, the process is simple and convenient, the connection parts can be omitted, and the space and the processing cost of the installation parts are saved.
Two positioning holes are formed in the bottom of the reinforcing piece, distributed on two sides of the arched matching portion and located between the arched matching portion and the cross-shaped groove. The positioning function is provided for the installation of the reinforcing part, so that the installation position is more accurate and more efficient.
Therefore, the utility model discloses following beneficial effect has: (1) the cross section of the electric automobile floor seat cross beam area can be formed into a closed cross section reinforced whole, so that the bending resistance of the floor cross beam is greatly improved; (2) the reinforcing piece has small volume, the space in the vehicle is saved, and the comfort level of passengers is higher; (3) simple structure, convenient installation and low processing cost.
Drawings
Fig. 1 is a schematic top view of the present invention.
Fig. 2 is a schematic bottom view of the present invention.
Fig. 3 is a schematic rear view of the present invention.
Fig. 4 is a schematic structural view of the reinforcing member of the present invention.
In the figure: 1. the floor comprises a left floor body 2, a middle channel 3, a right floor body 4, a reinforcement 4.1, a cross groove 4.2, an arch-shaped matching part 4.3, a middle channel flanging 4.4, a floor flanging 4.5, a positioning hole 5, a right seat cross beam 6, a right seat support 7, a left seat support 8, a left seat cross beam 9, a parallel reinforcement bulge 9.1 and an arch-shaped bottom reinforcement bulge.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
In the embodiment shown in fig. 1, 2 and 3, the bending rigidity reinforcing structure for the floor beam of the electric vehicle comprises a middle channel 2, left and right seat beam assemblies are arranged on two sides of the middle channel, a left floor body 1 and a right floor body 3 are arranged below the left and right seat beam assemblies, and the bending rigidity reinforcing structure further comprises a reinforcing piece 4, wherein the reinforcing piece is in a long plate shape and is arranged below the middle channel and the left and right floor bodies. The left seat beam assembly comprises a left seat beam 8 and a left seat support 7, the right seat beam assembly comprises a right seat beam 5 and a left seat support 6, the left seat support and the right seat support are positioned above connecting seams of the left seat beam, the right seat beam and a middle channel, the bottom surfaces of the left seat support and the right seat support are connected with the middle channel and the upper surfaces of the left seat beam and the right seat beam, and the right seat support and the left seat support are respectively connected with two convex side surfaces of the middle channel.
In the figure 4, the middle part of the reinforcing part is convexly provided with an arched matching part 4.2 matched with the bottom surface of the middle channel, and the arched matching part extends along the length direction of the reinforcing part, so that the longitudinal section of the arched matching part is U-shaped. The bottom of the middle channel is provided with a reinforcing bulge, the reinforcing bulge comprises three reinforcing bulges, one reinforcing bulge is positioned at the arched bottom of the middle channel and extends along the arched direction, and the other two reinforcing bulges 9 which are parallel to each other are positioned at the two sides of the arch of the middle channel and are vertically crossed with the reinforcing bulge 9.1 at the arched bottom. The reinforcing piece is provided with two cross grooves 4.1 matched with the reinforcing bulges, and the cross grooves are distributed on two sides of the arched matching part. The edge of the reinforcing piece is provided with an outward flange which is distributed along the length direction of the reinforcing piece. The flanges are divided into a middle channel flange 4.3 and a floor flange 4.4, the middle channel flange is connected with a flat plate area at the bottom of the middle channel, and the floor flange is connected with floor bodies on two sides of the seat beam. The length of the reinforcing piece is 450 mm-500 mm. The reinforcement is welded with the seat beam assembly and the floor body in three layers in the overlapping area to form a seamless whole between the sections. Two positioning holes 4.5 are formed in the bottom of the reinforcing piece, distributed on two sides of the arched matching portion and located between the arched matching portion and the cross-shaped groove.
In the installation and processing process of the towing hook installation structure of the electric automobile, firstly, a seat beam assembly comprises a seat installation support and a seat beam, and the seat installation support and the seat beam are respectively welded by welding spots to form a left seat beam assembly and a right seat beam assembly; welding the finished left and right seat beam assemblies with the corresponding left and right floor bodies respectively to form left and right floor assemblies; welding a reinforcing piece for enhancing the bending rigidity of the body-in-white and the middle channel to form a middle channel assembly; and welding the left floor assembly and the right floor assembly with the middle channel assembly respectively, wherein the left seat beam assembly and the right seat beam assembly are connected with the middle channel lap joint area in a welding mode, and the reinforcing piece, the left floor, the right floor and the left seat beam and the right seat beam overlap joint area are welded in a three-layer welding mode to finally form the whole towing hook installation structure.

Claims (7)

1. The utility model provides an electric automobile floor crossbeam bending rigidity additional strengthening, includes well passageway, the both sides of well passageway are equipped with left and right seat crossbeam assembly, left and right seat crossbeam assembly below is equipped with left and right floor body, characterized by still includes the reinforcement, the reinforcement is long plate-like, the reinforcement locate well passageway with left and right floor body below.
2. The structure of claim 1, wherein the middle part of the reinforcement is convexly provided with an arched matching part matched with the bottom surface of the central channel, and the arched matching part extends along the length direction of the reinforcement so that the longitudinal section of the arched matching part is U-shaped.
3. The structure of claim 1 or 2, wherein the bottom of the central channel is provided with a reinforcing protrusion, the reinforcing member is provided with two cross grooves matched with the reinforcing protrusion, and the cross grooves are distributed on two sides of the arched matching portion.
4. The structure of claim 3, wherein the edge of the reinforcement member is provided with outward flanges, and the flanges are distributed along the length of the reinforcement member.
5. The bending rigidity reinforcing structure of the floor cross member of the electric vehicle as claimed in claim 1, wherein the length of the reinforcing member is 450mm to 500 mm.
6. The floor cross member bending rigidity reinforcing structure of the electric vehicle as claimed in claim 1 or 5, wherein the overlapping area of the reinforcement, the seat cross member assembly and the floor body is welded in three layers.
7. The floor cross member bending stiffness enhancing structure of the electric vehicle as claimed in claim 6, wherein the bottom of the reinforcement member is provided with two positioning holes, and the two positioning holes are distributed on both sides of the arched matching portion and located between the arched matching portion and the cross-shaped groove.
CN201920824252.4U 2019-06-03 2019-06-03 Bending rigidity reinforcing structure for floor beam of electric automobile Active CN210634646U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920824252.4U CN210634646U (en) 2019-06-03 2019-06-03 Bending rigidity reinforcing structure for floor beam of electric automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920824252.4U CN210634646U (en) 2019-06-03 2019-06-03 Bending rigidity reinforcing structure for floor beam of electric automobile

Publications (1)

Publication Number Publication Date
CN210634646U true CN210634646U (en) 2020-05-29

Family

ID=70799330

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920824252.4U Active CN210634646U (en) 2019-06-03 2019-06-03 Bending rigidity reinforcing structure for floor beam of electric automobile

Country Status (1)

Country Link
CN (1) CN210634646U (en)

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Address after: 310051 1st and 6th floors, no.451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province

Patentee after: Zhejiang Zero run Technology Co.,Ltd.

Address before: 310051 1st and 6th floors, no.451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province

Patentee before: ZHEJIANG LEAPMOTOR TECHNOLOGY Co.,Ltd.