CN213566155U - Automobile rear floor structure and automobile thereof - Google Patents
Automobile rear floor structure and automobile thereof Download PDFInfo
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- CN213566155U CN213566155U CN202022390992.7U CN202022390992U CN213566155U CN 213566155 U CN213566155 U CN 213566155U CN 202022390992 U CN202022390992 U CN 202022390992U CN 213566155 U CN213566155 U CN 213566155U
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Abstract
The utility model discloses an automobile rear floor structure and an automobile thereof, which comprises a rear floor framework and a rear floor; the rear floor framework is provided with a through hole; the rear floor is made of fiber reinforced materials, and a cavity is formed by sinking towards one side of the rear floor; the rear floor cover is arranged above the through hole and is fixedly connected with the rear floor framework. The utility model relates to a floor structure specially adapted fuel cell car behind car has solved the problem that space utilization is low and weight is heavy that prior art scheme exists.
Description
Technical Field
The utility model relates to an automobile body structure field especially relates to a floor structure behind car and car thereof.
Background
With the increasing tightening of national emission regulations, the lightening of automobiles has become one of the focuses of public attention in order to reduce fuel consumption and carbon dioxide emission. Research shows that when the automobile mass is reduced by 10%, the oil consumption is reduced by 6-8% and the exhaust emission is reduced by 4%. In addition, the light weight of the automobile can also improve the dynamic property of the automobile and reduce the cost. Therefore, the light weight of the automobile is a long-term design research direction.
The existing automobile rear floor is generally a steel or aluminum floor, and for a formed part with a large forming depth requirement, a large drawing angle is needed to finish drawing, but the space utilization rate is reduced; in addition, the automobile rear floor is generally a large-size part and a single-layer thin plate, the rigidity is low, the rigidity and the natural frequency cannot be greatly improved even by a reinforcement means, resonance is easy to generate, and the NVH performance of the whole automobile is affected.
Therefore, the design of the rear floor structure with high rigidity and light weight has important application value.
SUMMERY OF THE UTILITY MODEL
The utility model provides a floor structure and car behind car, specially adapted fuel cell car for solve the problem that space utilization that prior art scheme exists is low and weight is heavy.
In order to solve the technical problem, the utility model provides an automobile rear floor structure, which comprises a rear floor framework and a rear floor; the rear floor framework is provided with a through hole; the rear floor is made of fiber reinforced materials and is sunken towards one side to form a cavity; the rear floor cover is arranged above the through hole and is fixedly connected with the rear floor framework.
Preferably, the automobile rear floor structure further comprises a sealant, wherein the sealant is arranged between the rear floor framework and the rear floor and used for bonding the rear floor framework and the rear floor.
Preferably, the automobile rear floor structure further comprises a connecting piece, and the connecting piece is used for connecting the rear floor framework and the rear floor.
Preferably, the rear floor framework is provided with a plurality of first mounting holes, the rear floor is provided with a plurality of second mounting holes, and the first mounting holes and the second mounting holes are the same in number and are in one-to-one correspondence; the connecting piece is a bolt, and the first mounting hole is fixedly connected with the second mounting hole through the bolt.
Preferably, the cavity is a circular arc cavity.
Preferably, the rear floor panel includes a body portion and a transition step portion, the body portion edge connecting the transition step portion.
Preferably, one end of the transition step part, which is far away from the body part, is provided with a flange for fitting with the surface of the rear floor framework.
Preferably, a groove is formed in one side of the flange facing the rear floor frame.
Preferably, a reinforcing rib is arranged on the rear floor, and the middle position of the reinforcing rib is of a circular structure.
Another object of the present invention is to provide a vehicle, which includes the vehicle rear floor structure as described above.
The utility model discloses a floor structure and car behind car, specially adapted fuel cell car compares with prior art, and its beneficial effect lies in:
the rear floor framework with the through holes is fixedly connected with the rear floor, and the rear floor is made of fiber reinforced materials and has the characteristics of low density, high specific strength, high specific modulus, strong impact resistance and the like, so that the weight of an automobile body can be reduced, and the first-order mode of the automobile and the rigidity of the whole automobile are improved; in addition, due to the excellent performance of the rear floor material, the requirement on the drawing angle is low, the size space wasted due to drawing is reduced, the utilization rate of the vehicle body space is improved, the fuel cell vehicle has enough space, hydrogen cylinders are arranged in a cavity formed by upward sinking of the rear floor, and the overall structure of the vehicle is improved and optimized.
Drawings
FIG. 1 is a first schematic view of the installation of the rear floor frame and the rear floor in the present embodiment;
FIG. 2 is an enlarged view of another angle at the junction of the rear floor frame and the rear floor in the present embodiment;
FIG. 3 is an enlarged view of the junction of the rear floor frame and the rear floor in the present embodiment;
FIG. 4 is a second schematic view of the installation of the rear floor frame and the rear floor in the present embodiment;
fig. 5 is a schematic structural view of the rear floor in the present embodiment.
In the figure, the position of the upper end of the main shaft,
1. a rear floor frame;
2. rear floor, 21, flange, 22, reinforcing rib, 23, body part, 24, transition step part, 25 and cavity;
3. sealing glue;
4. a bolt;
5. a hydrogen cylinder.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those 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 particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "first", "second", and the like are used in the present invention to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
It should be noted that the attached drawing of the scheme is only a schematic system diagram, and does not show all the components of the present invention, and the components are added in the system, and the core principle is still the same as the scheme.
Referring to fig. 1, an embodiment of the present invention provides an automobile rear floor structure and an automobile thereof, which is particularly suitable for a fuel cell automobile, and the structure includes a rear floor frame 1 and a rear floor 2; the rear floor framework 1 is provided with a through hole; the rear floor 2 is made of a fiber-reinforced material, preferably a long fiber-reinforced thermoplastic material, and the rear floor 2 is recessed to one side to form a cavity 25; the rear floor 2 covers the through hole and is fixedly connected with the rear floor framework 1.
Based on the technical scheme: the rear floor framework 1 with the through holes is fixedly connected with the rear floor 2, and the rear floor 2 is made of fiber reinforced materials, so that the rear floor has the characteristics of low density, high specific strength, high specific modulus, strong impact resistance and the like, and particularly, the rear floor 2 in the embodiment is made of long fiber reinforced thermoplastic materials, so that the weight of an automobile body can be reduced, and the first-order mode of the automobile and the rigidity of the whole automobile can be improved; due to the excellent performance of the material of the rear floor 2, the requirement on the drawing angle is low in the process of producing the rear floor 2, the size space wasted due to drawing is reduced, the fuel cell automobile has enough space, and the hydrogen cylinders are arranged in the cavity 25 formed by the upward recess of the rear floor 2, so that the space utilization rate is high; furthermore, because long fiber reinforced thermoplastic material has certain vibration damping, can reduce the vibration of this regional panel and improve NVH performance, compare in the back floor that adopts traditional steel sheet to make, the damping pad that this embodiment reducible regional setting in this department has the advantage that reduces whole car weight and cost.
As shown in fig. 2, the floor frame further comprises a sealant 3, and the sealant 3 is used for bonding and sealing the rear floor frame 1 and the rear floor 2. Specifically, in the process of installing the rear floor 2 on the rear floor frame 1, the sealant 3 needs to be applied to the joint of the rear floor frame 1 and the rear floor 2 for bonding and sealing, and further, the sealant 3 is a polyurethane adhesive, which has high tensile strength, excellent elasticity, high wear resistance, oil resistance and cold resistance, and is widely used for sealing in the manufacture of buildings and automobiles.
As shown in fig. 3, the floor frame further comprises a connecting member for connecting the rear floor frame 1 and the rear floor 2, wherein the connecting member can be welded or riveted; in the embodiment, the rear floor framework 1 is provided with a plurality of first mounting holes, the rear floor 2 is provided with a plurality of second mounting holes, and the first mounting holes and the second mounting holes are the same in number and are in one-to-one correspondence; in this embodiment, the connecting member is a bolt 4, and the bolt 4 passes through the first mounting hole and the second mounting hole to fixedly connect the rear floor frame 1 and the rear floor 2. Specifically, because when smearing sealed glue 3 between back floor skeleton 1 and back floor 2, sealed glue 3's solidification is congealed and needs certain time, in order to avoid when the solidification is congealed, back floor skeleton 1 and back floor 2 produce relative movement and cause sealed effect not good, in this embodiment, set up first mounting hole on back floor skeleton 1, set up the second mounting hole on back floor 2, consequently can use the bolt to pass first mounting hole and second mounting hole and get up back floor skeleton 1 and back floor 2 fixed connection. Further, the number of the first mounting holes and the second mounting holes is multiple, and the positions of the bolt connection are four corners of the rear floor 2.
As shown in fig. 4, the cavity 25 formed by recessing the rear floor panel 2 to one side is arc-shaped, so that the stress condition of the whole structure can be optimized, and the rear floor panel 2 comprises the body portion 23 and the transition step portion 24, and the edge of the body portion 23 is connected with the transition step portion 24, so that the structural design mode has a certain effect on improving the connection rigidity. Preferably, one end of the transition step portion 24, which is far away from the body portion 23, is provided with a flange 21 for being connected and attached to the surface of the rear floor framework 1, and one side of the flange 21, which faces the rear floor framework 1, is provided with a groove for being connected with the rear floor framework 1, and the groove can play a role in guiding and positioning when the sealant 3 is coated between the rear floor framework 1 and the rear floor 2, so as to prevent the sealant from flowing outwards when the sealant is not cured.
In this embodiment, the rear floor 2 is obtained by performing online die pressing on a composite material, and the minimum drawing angle is 1 degree (the drawing angle of the existing steel part is 10 degrees), so that the problem of manufacturing deeper parts under a smaller vehicle body size is solved, in particular, a large space formed by a larger drawing depth can meet the arrangement requirement of the hydrogen cylinders 5 of the fuel cell vehicle, the space utilization rate of the vehicle is greatly improved, and the hydrogen storage capacity of the hydrogen cylinders 5 can also be improved by increasing the volume, so that the cruising ability of the vehicle is improved.
As shown in fig. 5, it is preferable that the rear floor 2 is provided with a reinforcing rib 22, specifically, the angle of the side wall of the reinforcing rib is 5 degrees, so that the rigidity and the first-order mode of the entire vehicle can be improved, and the middle position of the reinforcing rib 22 is a circular structure. Preferably, the diameter of the circular structure is about 180 mm to about 220 mm, and the thickness of the middle portion is about 2.5 mm to about 3.5 mm.
Furthermore, the embodiment of the utility model provides a still provide a car, this car includes as above floor structure behind the car.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. A rear floor structure of an automobile is characterized by comprising a rear floor framework and a rear floor;
the rear floor framework is provided with a through hole;
the rear floor is made of fiber reinforced materials, and a cavity is formed by sinking towards one side of the rear floor;
the rear floor cover is arranged above the through hole and is fixedly connected with the rear floor framework.
2. The vehicle rear floor structure according to claim 1, further comprising a sealant provided between said rear floor frame and said rear floor for bonding said rear floor frame and said rear floor.
3. The vehicle rear floor structure according to claim 2, further comprising a connecting member for connecting the rear floor skeleton and the rear floor.
4. The automobile rear floor structure according to claim 3, wherein the rear floor skeleton is provided with a plurality of first mounting holes, the rear floor is provided with a plurality of second mounting holes, and the number of the first mounting holes is the same as that of the second mounting holes, and the first mounting holes and the second mounting holes are in one-to-one correspondence;
the connecting piece is a bolt, and the first mounting hole is fixedly connected with the second mounting hole through the bolt.
5. The vehicle rear floor structure according to claim 1, wherein the cavity is a circular arc-shaped cavity.
6. The automobile rear floor structure according to any one of claims 1 to 5, characterized in that the rear floor includes a body portion and a transition step portion, the body portion edge connecting the transition step portion.
7. The vehicle rear floor structure according to claim 6, wherein an end of the transition step portion remote from the body portion is provided with a flange for fitting with a surface of the rear floor frame.
8. The vehicle rear floor structure according to claim 7, wherein a side of the flange facing the rear floor frame is provided with a groove.
9. The vehicle rear floor structure according to any one of claims 1 to 5, wherein a reinforcing rib is provided on the rear floor, and a middle position of the reinforcing rib is of a circular structure.
10. An automobile characterized by comprising the automobile rear floor structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022390992.7U CN213566155U (en) | 2020-10-23 | 2020-10-23 | Automobile rear floor structure and automobile thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022390992.7U CN213566155U (en) | 2020-10-23 | 2020-10-23 | Automobile rear floor structure and automobile thereof |
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| Publication Number | Publication Date |
|---|---|
| CN213566155U true CN213566155U (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022390992.7U Active CN213566155U (en) | 2020-10-23 | 2020-10-23 | Automobile rear floor structure and automobile thereof |
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| CN (1) | CN213566155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113602365A (en) * | 2021-08-12 | 2021-11-05 | 广东亚太新材料科技有限公司 | Floor seal structure behind car carbon-fibre composite |
-
2020
- 2020-10-23 CN CN202022390992.7U patent/CN213566155U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113602365A (en) * | 2021-08-12 | 2021-11-05 | 广东亚太新材料科技有限公司 | Floor seal structure behind car carbon-fibre composite |
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