CN115636024A - Electric automobile floor middle passage assembly, front floor assembly and automobile - Google Patents
Electric automobile floor middle passage assembly, front floor assembly and automobile Download PDFInfo
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- CN115636024A CN115636024A CN202211416834.1A CN202211416834A CN115636024A CN 115636024 A CN115636024 A CN 115636024A CN 202211416834 A CN202211416834 A CN 202211416834A CN 115636024 A CN115636024 A CN 115636024A
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000003351 stiffener Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 6
- 238000005457 optimization Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 201000009240 nasopharyngitis Diseases 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The invention relates to a middle channel assembly of an electric automobile floor, a front floor assembly and an automobile, wherein the middle channel assembly comprises: the middle channel assembly body and the middle channel reinforcing cross beam; the middle position of the upper surface of the middle channel assembly body is a convex surface, the convex surface extends from one end of the middle channel assembly body to the other end, one end of the convex surface is provided with a convex structure, and the convex surface is also provided with a plurality of reinforcing structures; the upper surface of the middle channel assembly body is also provided with two grooves which are symmetrically distributed on two sides of the upper surface of the middle channel assembly body and are parallel to the convex surface; power battery mounting areas are arranged in the two grooves; the back surfaces of the two grooves are provided with plane connecting areas connected with the middle channel reinforcing beam, and the two plane connecting areas are positioned at one side close to the protruding structure; the middle channel reinforcing beam is fixedly connected with the two plane connecting areas, and a cavity is formed between the middle channel assembly body and the middle channel reinforcing beam.
Description
Technical Field
The invention relates to the technical field of automobile floors, in particular to a middle channel assembly and a front floor assembly of an electric automobile floor and an automobile.
Background
With the increasing shortage of energy and the increasing attention of people on environmental protection, the development of electric vehicles has become a consensus in various countries in the world. The pure electric new energy automobile models in the global automobile market are more and more, the electric automobile usually selects to install the power battery below the automobile body floor, the channel is the important component part of the automobile body in the floor, be one of the vertical power transmission mechanism of automobile body skeleton, undertake the important task of transmitting energy forward and backward, form vertically and horizontally staggered's skeleton texture with parts such as automobile body doorsill roof beam, seat crossbeam assembly simultaneously, guarantee white automobile body rigidity and intensity demand, be used for satisfying the practical life and the driving safety of whole car, under the limited prerequisite of current technical battery unit capacity, can only increase battery capacity through the volume that increases the battery package as far as possible, promote the continuation of the journey mileage (taking the current common 200 kilometers continuation of the journey electric automobile as an example, the configuration lithium battery capacity is 30KWH probably). Meanwhile, due to the improvement of the life quality of people, the requirement on the comfort of the vehicle is higher and higher, particularly the comfort of passengers on the rear row, and the space of the passengers in the vehicle is increased. Therefore, the space of the floor of the vehicle body is extruded in the upper direction and the lower direction, so that the position of the channel assembly in the floor is further compressed, the floor of the vehicle body needs to be in a plate type layout, the strength and the rigidity of the vehicle body are greatly reduced, the force transfer of the vehicle body is unsmooth, and the safety of the vehicle is seriously influenced.
Disclosure of Invention
Therefore, the invention aims to overcome the defects that the integral strength and rigidity of a channel in a floor are reduced and the force transmission of a vehicle body is not smooth due to the limitation of the battery volume and the space in the vehicle, and provides a channel assembly in the floor of an electric vehicle, a front floor assembly and the vehicle.
An electric vehicle in-floor channel assembly comprising: the middle channel assembly body and the middle channel reinforcing cross beam;
the middle position of the upper surface of the middle channel assembly body is a convex surface, the convex surface extends from one end of the middle channel assembly body to the other end, one end of the convex surface is provided with a convex structure, and the convex surface is also provided with a plurality of reinforcing structures; the upper surface of the middle channel assembly body is also provided with two grooves, the two grooves are symmetrically distributed on two sides of the upper surface of the middle channel assembly body, and the two grooves are parallel to the convex surface; power battery mounting areas are arranged in the two grooves; the back surfaces of the two grooves are provided with plane connecting areas connected with the middle channel reinforcing beam, and the two plane connecting areas are positioned on one side close to the protruding structure;
the middle channel reinforcing beam is fixedly connected with the two plane connecting areas, and a cavity is formed between the middle channel assembly body and the middle channel reinforcing beam.
Further, the middle channel reinforcing beam is fixedly connected with the two plane connecting areas through spot welding.
Further, the reinforcing structure is a reinforcing rib.
Further, the strengthening rib sets up five altogether.
Furthermore, the number of the power battery mounting areas is four, and the four power battery mounting areas are symmetrically distributed in the two grooves.
Further, the distance from the bottom surface of the groove to the convex surface is 50mm.
Further, the electric automobile floor center channel assembly is made of a hot-formed steel plate.
A front floor assembly comprises any one of the electric automobile floor middle channel assembly, a front floor, longitudinal beams, a front seat cross beam, a threshold beam, a battery mounting cross beam and bracket, a battery mounting longitudinal beam and bracket, a battery mounting rear beam and bracket and a front longitudinal beam inner plate assembly;
the electric automobile floor middle channel assembly is fixedly connected with a front floor, the upper surface of the front floor is fixedly connected with a longitudinal beam, a front seat cross beam and a threshold beam, and the lower surface of the front floor is fixedly connected with a battery mounting cross beam and support, a battery mounting longitudinal beam and support, a battery mounting rear beam and support and a front longitudinal beam inner plate assembly.
Further, the distance from the bottom surface of the groove to the front floor is 20mm.
An automobile comprising a front floor assembly as claimed in any preceding claim.
The technical scheme of the invention meets the requirement of reducing the longitudinal height of the middle passage through structural innovation and material optimization, improves the rigidity and the collision performance of the vehicle body (the torsion rigidity of the body-in-white is 20000 N.m/°, the bending rigidity is 20000N/mm, and the collision safety performance of the whole vehicle is achieved) while the battery is installed, reduces the number of parts through a few-part design, increases the volume of the battery, improves the endurance mileage and reduces the driving cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a center channel assembly body;
FIG. 2 is a schematic structural view of a center channel reinforcement beam;
FIG. 3 isbase:Sub>A schematic view of the plane A-A;
FIG. 4 is a schematic view of plane B-B;
FIG. 5 is a schematic top view of the front floor assembly;
FIG. 6 is a schematic view of the lower surface of the front floor assembly;
FIG. 7 is a schematic energy transfer diagram of the front floor assembly;
FIG. 8 is a schematic view of plane C-C;
description of reference numerals:
1-a center channel assembly body; 1.1-raised structures; 1.2-plane connection area;
1.3-convex surface; 1.4-a reinforcing structure; 1.5-grooves;
1.6-power battery installation area; 1.7-median channel assembly body plane;
2-a center channel reinforcement beam; 3-front floor; 4-longitudinal beams;
5-front seat cross member; 6-sill beam; 7-a front longitudinal beam inner plate assembly;
8-installing longitudinal beams and brackets for the batteries; 9-mounting the back beam and the bracket by the battery.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1 to 4, an electric vehicle floor tunnel assembly includes: the middle channel assembly body 1 and the middle channel reinforcing cross beam 2;
the middle position of the upper surface of the middle channel assembly body 1 is a convex surface 1.3, the convex surface 1.3 extends from one end of the middle channel assembly body 1 to the other end, a convex structure 1.1 is arranged at one end of the convex surface 1.3, and a plurality of reinforcing structures 1.4 are further arranged on the convex surface 1.3; the upper surface of the middle channel assembly body 1 is also provided with two grooves 1.5, the two grooves 1.5 are symmetrically distributed on two sides of the upper surface of the middle channel assembly body 1, and the two grooves 1.5 are parallel to the convex surface 1.3; power battery mounting areas 1.6 are arranged in the two grooves 1.5; the back surfaces of the two grooves 1.5 are provided with plane connecting areas 1.2 connected with the middle channel reinforcing beam 2, and the two plane connecting areas 1.2 are positioned on one side close to the convex structures 1.1;
the middle channel reinforcing beam 2 is fixedly connected with the two plane connecting areas 1.2, and a cavity is formed between the middle channel assembly body 1 and the middle channel reinforcing beam 2.
The middle channel reinforcing beam 2 is fixedly connected with the two plane connecting areas 1.2 through spot welding.
The reinforcing structure 1.4 is a reinforcing rib.
The reinforcing ribs are five in number.
The number of the power battery mounting areas 1.6 is four, and the four power battery mounting areas 1.6 are symmetrically distributed in the two grooves 1.5.
The distance from the bottom surface of the groove 1.5 to the convex surface 1.3 is 50mm.
The electric automobile floor middle channel assembly is made of a hot forming steel plate, the hot forming steel plate has good material forming accuracy, the influence of material resilience is eliminated, and a complex shape can be realized. Due to the special properties of the hot-formed steel plate and the forming after heating, the complex shape which can be formed only by a plurality of working procedures in the common cold stamping forming can be completed in one working procedure. The one shot forming's technology benefit lies in can guaranteeing that the steel sheet in the course of working, and the inside fibre flow direction of steel sheet needn't receive the impact of secondary atress, guarantees that the steel sheet keeps best intensity and toughness, cools off fast after the part takes shape moreover, and the resilience volume after the part takes shape is very little, has greatly improved the material and has taken shape the degree of accuracy, the better assurance part size precision, lays good basis for the automobile body welding on next step.
Referring to fig. 5 to 8, the present invention further includes a front floor assembly, which includes any one of the above-mentioned electric vehicle floor center channel assembly, a front floor 3, a longitudinal beam 4, a front seat cross beam 5, a threshold beam 6, a front longitudinal beam inner plate assembly 7, a battery mounting longitudinal beam and bracket 8, and a battery mounting rear beam and bracket 9; energy of the front floor assembly is transferred as shown in fig. 7, when a vehicle is in frontal collision, collision energy can be transferred to two sides, and due to the structural innovation and material optimization of the middle channel assembly, the rigidity and collision performance of the front floor assembly are further improved;
the middle channel assembly of the electric automobile floor is fixedly connected with a front floor 3, the upper surface of the front floor 3 is fixedly connected with a longitudinal beam 4, a front seat cross beam 5 and a threshold beam 6, and the lower surface of the front floor 3 is fixedly connected with a battery mounting longitudinal beam and support 8, a battery mounting rear beam and support 9 and a front longitudinal beam inner plate assembly 7;
the distance from the bottom surface of the recess 1.5 to the front floor 3 is 20mm.
The invention also provides an automobile which is characterized in that the electric automobile comprises the front floor assembly, the front floor assembly comprises the electric automobile floor middle channel assembly, the floor middle channel assembly reduces the longitudinal height of a middle channel through structural innovation and material optimization, meets the requirement of battery installation, simultaneously improves the rigidity and the collision performance of an automobile body, achieves the aims of the torsional rigidity of a white automobile body of 20000 N.m/DEG, the bending rigidity of 20000N/mm and the collision safety performance of a whole automobile, reduces the number of parts through less part design, improves the endurance mileage and reduces the driving cost
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. An electric vehicle floor center channel assembly, comprising: the middle channel assembly body (1) and the middle channel reinforcing cross beam (2);
the middle position of the upper surface of the middle channel assembly body (1) is provided with a convex surface (1.3), the convex surface (1.3) extends from one end to the other end of the middle channel assembly body (1), one end of the convex surface (1.3) is provided with a convex structure (1.1), and the convex surface (1.3) is also provided with a plurality of reinforcing structures (1.4); the upper surface of the middle channel assembly body (1) is also provided with two grooves (1.5), the two grooves (1.5) are symmetrically distributed on two sides of the upper surface of the middle channel assembly body (1), and the two grooves (1.5) are parallel to the convex surface (1.3); power battery mounting areas (1.6) are arranged in the two grooves (1.5); the back surfaces of the two grooves (1.5) are provided with plane connecting areas (1.2) connected with the middle channel reinforcing beam (2), and the two plane connecting areas (1.2) are positioned at one side close to the protruding structure (1.1);
the middle channel reinforcing beam (2) is fixedly connected with the two plane connecting areas (1.2), and a cavity is formed between the middle channel assembly body (1) and the middle channel reinforcing beam (2).
2. The electric vehicle floor center channel assembly according to claim 1, characterized in that the center channel reinforcement beam (2) is fixedly connected with the two plane connection areas (1.2) through spot welding.
3. The vehicle floor center channel assembly according to claim 1, wherein the reinforcement structure (1.4) is a stiffener.
4. The vehicle underfloor channel assembly according to claim 3, wherein the number of the reinforcing ribs is five.
5. The electric vehicle floor center channel assembly according to claim 1, wherein the number of the power battery mounting areas (1.6) is four, and the four power battery mounting areas (1.6) are symmetrically distributed in the two grooves (1.5).
6. The electric vehicle floor center channel assembly according to claim 1, wherein the distance from the bottom surface of the groove (1.5) to the convex surface (1.3) is 50mm.
7. The electric vehicle underfloor channel assembly according to claim 1, wherein the electric vehicle underfloor channel assembly is made of a hot-formed steel plate.
8. A front floor assembly, characterized in that the front floor assembly comprises the electric vehicle floor center channel assembly, the front floor (3), the side members (4), the front seat cross member (5), the threshold beam (6), the front side member inner panel assembly (7), the battery mounting side members and brackets (8) and the battery mounting rear members and brackets (9) according to any one of claims 1 to 7;
the electric automobile floor middle channel assembly is fixedly connected with a front floor (3), the upper surface of the front floor (3) is fixedly connected with a longitudinal beam (4), a front seat cross beam (5) and a threshold beam (6), and the lower surface of the front floor (3) is fixedly connected with a battery mounting longitudinal beam and a support (8), a battery mounting rear beam and a support (9) and a front longitudinal beam inner plate assembly (7).
9. Front floor assembly according to claim 8, characterized in that the distance of the bottom surface of the recess (1.5) to the front floor (3) is 20mm.
10. An automobile, characterized in that the automobile comprises a front floor assembly according to any one of claims 8-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211416834.1A CN115636024A (en) | 2022-11-14 | 2022-11-14 | Electric automobile floor middle passage assembly, front floor assembly and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211416834.1A CN115636024A (en) | 2022-11-14 | 2022-11-14 | Electric automobile floor middle passage assembly, front floor assembly and automobile |
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| Publication Number | Publication Date |
|---|---|
| CN115636024A true CN115636024A (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211416834.1A Pending CN115636024A (en) | 2022-11-14 | 2022-11-14 | Electric automobile floor middle passage assembly, front floor assembly and automobile |
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| CN (1) | CN115636024A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1382514A1 (en) * | 2002-07-19 | 2004-01-21 | Volkswagen Aktiengesellschaft | Motor vehicle floor structure |
| CN204037691U (en) * | 2014-06-25 | 2014-12-24 | 华晨汽车集团控股有限公司 | Front floor of electric vehicle assembly structure |
| CN209382107U (en) * | 2018-12-17 | 2019-09-13 | 浙江众泰汽车制造有限公司 | The underbody structure of hybrid vehicle |
| CN210634646U (en) * | 2019-06-03 | 2020-05-29 | 浙江零跑科技有限公司 | Bending rigidity reinforcing structure for floor beam of electric automobile |
| CN112172933A (en) * | 2020-10-15 | 2021-01-05 | 上海锐镁新能源科技有限公司 | Floor structure before automobile body |
| CN217778786U (en) * | 2022-06-29 | 2022-11-11 | 中国第一汽车股份有限公司 | Floor structure matched with various power batteries |
-
2022
- 2022-11-14 CN CN202211416834.1A patent/CN115636024A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1382514A1 (en) * | 2002-07-19 | 2004-01-21 | Volkswagen Aktiengesellschaft | Motor vehicle floor structure |
| CN204037691U (en) * | 2014-06-25 | 2014-12-24 | 华晨汽车集团控股有限公司 | Front floor of electric vehicle assembly structure |
| CN209382107U (en) * | 2018-12-17 | 2019-09-13 | 浙江众泰汽车制造有限公司 | The underbody structure of hybrid vehicle |
| CN210634646U (en) * | 2019-06-03 | 2020-05-29 | 浙江零跑科技有限公司 | Bending rigidity reinforcing structure for floor beam of electric automobile |
| CN112172933A (en) * | 2020-10-15 | 2021-01-05 | 上海锐镁新能源科技有限公司 | Floor structure before automobile body |
| CN217778786U (en) * | 2022-06-29 | 2022-11-11 | 中国第一汽车股份有限公司 | Floor structure matched with various power batteries |
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