CN109080710A - A kind of automobile rear floor assembly structure - Google Patents
A kind of automobile rear floor assembly structure Download PDFInfo
- Publication number
- CN109080710A CN109080710A CN201810687939.8A CN201810687939A CN109080710A CN 109080710 A CN109080710 A CN 109080710A CN 201810687939 A CN201810687939 A CN 201810687939A CN 109080710 A CN109080710 A CN 109080710A
- Authority
- CN
- China
- Prior art keywords
- floor
- side member
- reinforcing rib
- transverse girder
- rear floor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 76
- 210000004744 fore-foot Anatomy 0.000 claims description 16
- 230000002787 reinforcement Effects 0.000 claims description 13
- 210000003205 muscle Anatomy 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 9
- 230000005284 excitation Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009514 concussion Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The present invention provides a kind of automobile rear floor assembly structure, be easy to cause rear floor to generate pit, and the NVH performance issue on rear floor when solving existing rear floor assembly installation function part, improves safety and the comfort of vehicle.The structure includes rear floor body, it further include the floor side member, intermediate transverse girder and middle part reinforcing beam that the rear floor body back side is set, the section of the floor side member, intermediate transverse girder and middle part reinforcing beam is in " several " font, the floor side member is pairs of and is arranged symmetrically in the two sides of the rear floor body, the both ends of the intermediate transverse girder are connect with the middle part of the floor side member respectively, the floor side member and intermediate transverse girder connect to form I-shaped, and one end of the middle part reinforcing beam is overlapped on the side of the intermediate transverse girder.
Description
Technical field
The present invention relates to automobile body-in-white constructing technology fields, and in particular to a kind of automobile rear floor assembly structure.
Background technique
Floor assembly is a part of Body in white frame afterwards, there is carrying.Worker is in assembly, in rear floor part
When installing some functors, if floor Position Design is weaker or power transmission is unbalanced, floor is also easy to produce pit, to cause to compare
Serious quality problems.Moreover, it when rear floor is born from the excitation on road surface and engine, if design is improper, easily produces
Raw resonance, declines vehicle NVH performance, in this way, just reducing safety and the comfort of vehicle.And existing floor assembly
Structure be mostly where it is weak just relevant position paste stiffening plate, will lead to power transmission design it is unbalanced, and increase weight.Each factory now
Quotient is in order to improve product competitiveness, on the basis of meeting automobile properties, shortens the development cycle, reduces development cost, design
It is a kind of mature and to meet all directions performance requirement assembly structure extremely important.
Summary of the invention
The purpose of the present invention is to propose to a kind of automobile rear floor assembly structures, to solve existing rear floor assembly installation function
Rear floor can be easy to cause to generate pit, and the NVH performance issue on rear floor when part, improve the safety of vehicle and comfortable
Property.
The automobile rear floor assembly structure provided according to the present invention, including rear floor body, it is characterised in that further include setting
Set the floor side member, intermediate transverse girder and middle part reinforcing beam at the rear floor body back side, the floor side member, intermediate transverse girder and middle part
The section of reinforcing beam is in " several " font, and the floor side member is pairs of and is arranged symmetrically in the two sides of the rear floor body, described
The both ends of intermediate transverse girder are connect with the middle part of the floor side member respectively, and the floor side member and intermediate transverse girder connect to form " work " word
One end of shape, the middle part reinforcing beam is overlapped on the side of the intermediate transverse girder.
Further, the tie point of the middle part reinforcing beam and intermediate transverse girder between the floor side member distance 1/5
At~1/2.The installation site of middle part reinforcing beam can be according to vehicle unrestricted choice.
Further, when the tie point of the middle part reinforcing beam and intermediate transverse girder between the pairs of floor side member distance
The position less than 1/2 when, the floor side member, intermediate transverse girder and middle part reinforcing beam will it is described after floor body the back side divide
At the biggish latter area of area, lesser rear three regions in two regions and forefoot area of area, the latter area is provided with
The strip groove being arranged along vehicle commander direction and the reinforcing rib with heavy platform portion, rear two regions are provided with along vehicle commander direction is in
The groove of " H " shape, the forefoot area is provided with along the strip groove of vehicle commander direction setting and the reinforcing rib with heavy platform portion.It is right
Two regions behind the lesser rear floor of area, can by the way of the groove of H-shaped, and it is biggish for area after behind floor
One region and forefoot area in such a way that strip groove is combined with reinforcing rib, can be improved the rigidity on rear floor and step on
Intensity is stepped on, floor local mode is improved.
Further, the reinforcing rib of the forefoot area includes being symmetrical arranged along the width direction midpoint of the rear floor body
Left reinforcing rib and right reinforcing rib, between the left reinforcing rib and the reinforcing rib of the latter area be equipped with left connecting groove, institute
It states and is equipped with right connecting groove between right reinforcing rib and the groove in " H " shape in rear two regions, before the left connecting groove
Section is connect by the left connection slot that vehicle width direction is arranged with the left reinforcing rib, and the rear end of left connecting groove passes through left arc groove
It is connect with the reinforcing rib of the latter area；The right connectivity slot and institute that the leading portion of the right connecting groove is arranged by vehicle width direction
Right reinforcing rib connection is stated, the rear end of right connecting groove is by right arc groove with the groove in " H " shape along vehicle commander direction
Long side connection.Such structure, the reinforcement groove and reinforcing rib that can allow rear floor forefoot area are respectively and behind rear floor
Behind one region and rear floor the reinforcement groove and reinforcing rib in two regions by connecting groove contact link up, and left connecting groove and
Right connecting groove and its coupling part, are actually formed the reinforcement connecting groove of similar " fore-telling " font of a pair of opposing, and connect
The middle section of groove is supported by intermediate transverse girder, when floor is born from the excitation on road surface and engine after can significantly being promoted
Concussion resistance energy, promote the NVH performance of vehicle.
Further, intermediate reinforcement groove, the intermediate reinforcement groove are equipped between the left reinforcing rib and right reinforcing rib
Back segment extend to the latter area.Reinforce the intensity and mode that groove is equally used for floor after reinforcing in centre.
Further, the floor side member is connect with the junction of the intermediate transverse girder by overlapping crossbeam, and the overlap joint is horizontal
Beam includes one section for being adapted to the intermediate transverse girder bottom with described coat with overlapped for the bottom surface of floor side member faying surface and one section
The lap segment of portion's shape.The overlap joint crossbeam can effectively promote intermediate transverse girder in the case where floor assembly NVH performance after guarantee
With the intensity of floor side member junction.
Further, the binding face of the middle part of the intermediate transverse girder and the rear floor body is provided with stiffening plate.At this
Stiffening plate be small sheet metal component, the mounting hole concentric with rear floor mounting hole is set when application generally in the stiffening plate, is installed
When, which is bonded with the bottom of rear floor body and is mounted on the middle part of intermediate transverse girder, it is mainly used for the installation of other parts,
Effectively reinforce the intensity of local installation point.
Further, it is small to be overlapped with the rear portion being adapted to the bottom shape of the floor side member for the back segment bottom surface of the floor side member
Stringer.The rear portion stringer is mainly used for reinforcing the tie point intensity of floor side member and body tail.
Automobile rear floor assembly structure of the invention has the following beneficial effects:
1, automobile rear floor assembly structure design layout of the invention is reasonable, and rational technology is easily manufactured, is suitble to hardware and software platform, mould
Block shortens the development cycle, reduces production cost；
2, structure reliable design of the invention, frame structure can effectively improve rigidity, and substantially improve NVH performance, Jin Erti
Reliability, safety and the comfort of high vehicle, make product have more the market competitiveness；
3, rear floor body is divided into forefoot area, latter area and three, rear two region region by frame structure, to different area
Region reinforces groove or reinforcing rib using " H " shape or it combines and handles respectively, can effectively improve the rigidity on rear floor and trample
Intensity improves floor local mode；
4, the reinforcing rib of forefoot area or reinforcement groove can be logical with the reinforcing rib or reinforcement groove in latter area and rear two region
Connectivity slot connection is crossed, and connectivity slot is supported by intermediate transverse girder, the excitation from road surface and engine can be born on rear floor
When, resonance is reduced, vehicle NVH performance is increased；
5, rear portion stringer, centre is arranged in the back segment bottom surface of floor side member and intermediate transverse girder junction setting overlap joint crossbeam, floor side member
Stiffening plate is arranged in the binding face of the middle part of crossbeam and rear floor body, so that each component junction of rear floor assembly is guaranteeing
Bonding strength can be promoted in the case where NVH performance, reduce connection tolerance.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is A of the invention to structural schematic diagram.
Fig. 3 is A direction view explosive view of the invention.
It wherein illustrates: 1, rear floor body；A, latter area；A1, strip groove；A2, reinforcing rib；B, rear two region；b1,
In the groove of " H " shape；C, forefoot area；C1, strip groove；C21, left reinforcing rib；C22, right reinforcing rib；M, intermediate groove；P1, a left side
Connecting groove；P11, left connection slot；P12, left arc groove；P2, right connecting groove；P21, right connectivity slot；P22, right arc are recessed
Slot；2, floor side member；3, intermediate transverse girder；4, middle part reinforcing beam；5, crossbeam is overlapped；51, faying surface；52, lap segment；6, stiffening plate；
7, rear portion stringer.
Specific embodiment
It is for example related each to a specific embodiment of the invention by the description to embodiment below against attached drawing
The shape of component, construction, the mutual alignment between each section and connection relationship, the effect of each section and working principle etc. are made into one
The detailed description of step.
Such as Fig. 1-3, automobile rear floor assembly structure of the invention, including rear floor body 1 further include being arranged on rear floor
Floor side member 2, intermediate transverse girder 3 and the middle part reinforcing beam 4 at 1 back side of ontology, floor side member 2, intermediate transverse girder 3 and middle part reinforcing beam 4
Section be in " several " font, floor side member 2 in pairs and is arranged symmetrically in the two sides of rear floor body 1, the both ends point of intermediate transverse girder 3
It is not connect with the middle part of floor side member 2, floor side member 2 and the connection of intermediate transverse girder 3 form I-shaped, one end of middle part reinforcing beam 3
It is overlapped on the side of intermediate transverse girder 3.
As preferred embodiment, the tie point of middle part reinforcing beam 4 and intermediate transverse girder 3 distance between floor side member 2
1/5~1/2 at.The installation site of middle part reinforcing beam can be according to vehicle unrestricted choice, the present embodiment 1/3.
It is preferred that when the tie point of middle part reinforcing beam 4 and intermediate transverse girder 3 between pairs of floor side member 2 distance less than 1/2
Position when, it is biggish that the back side of rear floor body 1 is divided into area by floor side member 2, intermediate transverse girder 3 and middle part reinforcing beam 4
Tri- regions two region b and forefoot area c after latter area a, area are lesser, latter area a is provided with to be set along vehicle commander direction
The strip groove a1 set and reinforcing rib a2, rear two regions b with heavy platform portion are provided with the groove in " H " shape along vehicle commander direction
B1, forefoot area c are provided with along the strip groove c1 of vehicle commander direction setting and the reinforcing rib with heavy platform portion.It is smaller for area
Rear floor after two region b, can by the way of the groove of H-shaped, and it is biggish for area after floor latter area a with
And forefoot area c, the rigidity on rear floor in such a way that strip groove is combined with reinforcing rib, can be improved and trample intensity,
Improve floor local mode.
Preferably, the reinforcing rib of forefoot area c includes along the symmetrically arranged left reinforcement in the width direction midpoint of rear floor body 1
Muscle c21 and right reinforcing rib c22, is equipped with left connecting groove P1 between left reinforcing rib c21 and the reinforcing rib a2 of latter area a, the right side adds
Right connecting groove P2 is equipped between strengthening tendons c22 and the groove b1 in " H " shape in rear two region, the leading portion of left connecting groove P1 passes through
The left connection slot P11 of vehicle width direction setting is connect with left reinforcing rib c21, and the rear end of left connecting groove P1 passes through left arc groove
P12 is connect with the reinforcing rib a2 of latter area a；The right connectivity slot P21 that the leading portion of right connecting groove P2 is arranged by vehicle width direction
It is connect with right reinforcing rib c22, the rear end of right connecting groove P2 is by the right arc groove P22 and groove b1 in " H " shape along vehicle
The long side of length direction connects.Such structure, can allow rear floor forefoot area c reinforcement groove and reinforcing rib respectively with it is rear
The reinforcement groove of two region b and reinforcing rib are contacted by connecting groove behind floor latter area a and rear floor links up, and left company
Groove and right connecting groove and its coupling part are connect, the reinforcement connection for being actually formed similar " fore-telling " font of a pair of opposing is recessed
Slot, and the middle section of connecting groove is supported by intermediate transverse girder 3, floor is born from road surface and is started after can significantly being promoted
Concussion resistance energy when the excitation of machine promotes the NVH performance of vehicle.
Preferably, intermediate reinforcement groove M is equipped between left reinforcing rib c21 and right reinforcing rib c22, groove M's reinforced in centre
Back segment extends to latter area a.Reinforce the intensity and mode that groove M is equally used for floor after reinforcing in centre.
Preferably, floor side member 2 is connect with the junction of intermediate transverse girder 3 by overlapping crossbeam 5, and overlap joint crossbeam 5 includes one section
For being adapted to the lap segment of 3 bottom shape of intermediate transverse girder with overlapped for the bottom surface of floor side member 2 faying surface 51 and one section with cladding
52.The overlap joint crossbeam 5 can effectively promote intermediate transverse girder 3 after guarantee in the case where floor assembly NVH performance and floor side member 2 connects
Connect the intensity at place.
Preferably, the binding face of the middle part of intermediate transverse girder 3 and rear floor body 1 is provided with stiffening plate 6.Stiffening plate at this
6 be small sheet metal component, is arranged the mounting hole concentric with rear floor mounting hole when application generally in the stiffening plate 6, when installation, should be added
Strong plate 6 is bonded with the bottom of rear floor body 1 and is mounted on the middle part of intermediate transverse girder 3, is mainly used for the installation of other parts, effectively
Reinforce the intensity of local installation point.
Preferably, the back segment bottom surface of floor side member 2 is overlapped with the rear portion stringer 7 being adapted to the bottom shape of floor side member 2.It should
Rear portion stringer 7 is mainly used for reinforcing the tie point intensity of floor side member 2 and body tail.
Claims (8)
1. a kind of automobile rear floor assembly structure, including rear floor body, it is characterised in that further include being arranged in rear floor body
Floor side member, intermediate transverse girder and the middle part reinforcing beam at the back side, the section of the floor side member, intermediate transverse girder and middle part reinforcing beam are equal
In " several " font, the floor side member is pairs of and is arranged symmetrically in the two sides of the rear floor body, the both ends of the intermediate transverse girder
It is connect respectively with the middle part of the floor side member, the floor side member and intermediate transverse girder connect to form I-shaped, and the middle part adds
One end of brutal is overlapped on the side of the intermediate transverse girder.
2. automobile rear floor assembly structure according to claim 1, it is characterised in that the middle part reinforcing beam and centre are horizontal
The tie point of beam between the floor side member distance 1/5~1/2 at.
3. automobile rear floor assembly structure according to claim 2, it is characterised in that when the middle part reinforcing beam and centre
The tie point of crossbeam between the pairs of floor side member when position less than 1/2 of distance, the floor side member, intermediate transverse girder with
And middle part reinforcing beam will it is described after floor body the back side be divided into the biggish latter area of area, area it is lesser after two regions
And three regions of forefoot area, the latter area are provided with along the strip groove of vehicle commander direction setting and with heavy platform portion
Reinforcing rib, rear two regions are provided with the groove in " H " shape along vehicle commander direction, and the forefoot area is provided with to be set along vehicle commander direction
The strip groove set and the reinforcing rib with heavy platform portion.
4. automobile rear floor assembly structure according to claim 3, it is characterised in that the reinforcing rib of the forefoot area includes
The symmetrically arranged left reinforcing rib in width direction midpoint and right reinforcing rib of floor body after described, the left reinforcing rib with it is described
Left connecting groove, the groove in " H " shape of the right reinforcing rib and rear two regions are equipped between the reinforcing rib of latter area
Between be equipped with right connecting groove, the left connection slot and the left reinforcement that the leading portion of the left connecting groove be arranged by vehicle width direction
Muscle connection, the rear end of left connecting groove is connect by left arc groove with the reinforcing rib of the latter area；The right connection is recessed
The right connectivity slot that the leading portion of slot is arranged by vehicle width direction is connect with the right reinforcing rib, and the rear end of right connecting groove passes through right arc
Connected in star is connect with the long side along vehicle commander direction of the groove in " H " shape.
5. automobile rear floor assembly structure according to claim 4, it is characterised in that the left reinforcing rib and right reinforcing rib
Between be equipped with it is intermediate reinforce groove, the intermediate back segment for reinforcing groove extends to the latter area.
6. automobile rear floor assembly structure described according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that the floor side member
It is connect with the junction of the intermediate transverse girder by overlapping crossbeam, the overlap joint crossbeam includes one section for the bottom surface with floor side member
Overlapped faying surface and one section are adapted to the lap segment of the intermediate transverse girder bottom shape with described coat.
7. automobile rear floor assembly structure according to claim 6, it is characterised in that the middle part of the intermediate transverse girder and institute
The binding face for stating rear floor body is provided with stiffening plate.
8. automobile rear floor assembly structure according to claim 6, it is characterised in that take the back segment bottom surface of the floor side member
It is connected to the rear portion stringer being adapted to the bottom shape of the floor side member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687939.8A CN109080710B (en) | 2018-06-28 | 2018-06-28 | Automobile rear floor assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687939.8A CN109080710B (en) | 2018-06-28 | 2018-06-28 | Automobile rear floor assembly structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109080710A true CN109080710A (en) | 2018-12-25 |
| CN109080710B CN109080710B (en) | 2021-05-28 |
Family
ID=64834931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810687939.8A Active CN109080710B (en) | 2018-06-28 | 2018-06-28 | Automobile rear floor assembly structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109080710B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111469934A (en) * | 2019-01-23 | 2020-07-31 | 马自达汽车株式会社 | Rear vehicle body structure |
| CN113306634A (en) * | 2021-07-09 | 2021-08-27 | 安徽江淮汽车集团股份有限公司 | Floor structure behind small-size car GMT |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113306634A (en) * | 2021-07-09 | 2021-08-27 | 安徽江淮汽车集团股份有限公司 | Floor structure behind small-size car GMT |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109080710B (en) | 2021-05-28 |
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