CN109204471A - Electric car lower frame and electric car - Google Patents
Electric car lower frame and electric car Download PDFInfo
- Publication number
- CN109204471A CN109204471A CN201811255489.1A CN201811255489A CN109204471A CN 109204471 A CN109204471 A CN 109204471A CN 201811255489 A CN201811255489 A CN 201811255489A CN 109204471 A CN109204471 A CN 109204471A
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- Prior art keywords
- assembly
- right vertical
- vertical beam
- crossbeam
- stringer
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
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- 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
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
-
- 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
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
- B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
- B60K2001/0438—Arrangement under the floor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
Abstract
That the object of the present invention is to provide a kind of crashworthinesses is more preferable, safety is more preferable, can install more big battery packet so that the longer electric car lower frame of course continuation mileage and electric car.A kind of electric car lower frame, lower frame includes left stringer assembly, right vertical beam assembly, frame cross assembly, middle channel assembly, left sill strip assembly and right sill strip assembly, the frame cross assembly includes at least first crossbeam, second cross beam and third crossbeam, the first crossbeam, second cross beam and third crossbeam, which are all connected with, is fixed on left stringer assembly, between right vertical beam assembly, the second cross beam is connected and fixed in the middle part of left stringer assembly, between in the middle part of right vertical beam assembly, the first crossbeam is located on front side of second cross beam, the third crossbeam is located on rear side of second cross beam, the left sill strip assembly is fixed on the left of left stringer assembly, the right sill strip assembly is fixed on the right side of right vertical beam assembly, the middle channel assembly is longitudinally disposed.
Description
Technical field
The present invention relates to automotive fields, and in particular to a kind of automobile lower vehicle frame and electric car.
Background technique
With the rapid development of electric car, more and more enterprises are initially added into the manufacture main forces of electric car, but
The course continuation mileage of electric car is a critical bottleneck for restricting its rapid development.In order to obtain higher course continuation mileage, electricity
Chi Bao needs occupy very big arrangement space, and its quality generally accounts for 20% or more of complete vehicle quality.
Emerging vehicle enterprise sacrifices collision safety often to obtain bigger battery pack arrangement space.And traditional vehicle enterprise is often firing
The body structure for being restructured to arrange battery pack, but restructure in this way on the car body frame structure of oily vehicle cannot be effectively adequately sharp
With space, it is difficult to reach the maximization of battery pack arrangement space, thus its course continuation mileage is often shorter.
Existing electric automobile frame heavier mass or battery pack are smaller, and cruising ability is poor, and lower frame Path of Force Transfer
Few, the anti-collision capacity of electric car is poor, and the life security of driver and occupant are difficult to be guaranteed.
Summary of the invention
That the object of the present invention is to provide a kind of crashworthinesses is more preferable, safety is more preferable, can install more big battery packet so as to continue
Navigate the longer electric car lower frame of mileage.
To achieve the above object, the present invention adopts the following technical scheme: a kind of electric car lower frame, lower frame packet
Include left stringer assembly, right vertical beam assembly, frame cross assembly, middle channel assembly, left sill strip assembly and right sill strip assembly, institute
Frame cross assembly is stated including at least first crossbeam, second cross beam and third crossbeam, the first crossbeam, second cross beam and third
Crossbeam, which is all connected with, to be fixed between left stringer assembly, right vertical beam assembly, and the second cross beam is connected and fixed in left stringer assembly
Between in the middle part of portion, right vertical beam assembly, the first crossbeam is located on front side of second cross beam, after the third crossbeam is located at second cross beam
Side, the left sill strip assembly are fixed on the left of left stringer assembly, and the right sill strip assembly is fixed on the right side of right vertical beam assembly,
The left stringer assembly structure is identical as right vertical beam assembly structure and is in being symmetrical set centered on middle channel assembly, institute
It is longitudinally disposed and be connected and fixed with first crossbeam, second cross beam and third crossbeam, left stringer assembly, right vertical beam to state middle channel assembly
Assembly, frame cross assembly, middle channel assembly, left sill strip assembly and right sill strip assembly cross section be in U-shape to have
To the through slot of a side opening.
Left stringer assembly of the invention is fixed with left sill strip assembly, right vertical beam assembly is fixed with right sill strip assembly, with
Vehicle frame left and right sides is set to be each formed with dual chamber structure, if vehicle frame left side is impacted, impact force can disperse stringer assembly to the left, with
Impact force will be dispersed on frame cross assembly afterwards, and the anticollision of vehicle frame of the present invention is effectively reliable, and safety is more preferable, can very big journey
Degree protects the lives and properties of driver and occupant.Wherein, vehicle frame of the present invention is closo skeleton structure, vehicle of the present invention
Frame rigid can be more preferable, and impact resistance is more preferable, is impacted less easily-deformable, safety is more preferable.Vehicle frame knot through the invention
Structure effectively unobstructed transmitting and can absorb collision energy, to effectively improve electric car because arrangement battery pack occupies collision
Collision safety problem caused by power transmission beam space.
Preferably, the left stringer assembly is made of left longitudinal beam front section, left stringer middle section and left stringer back segment, the left side
Longitudinal beam front section rear portion, left stringer middle section and left stringer back segment front are welded and fixed with left sill strip assembly, before the left stringer
Section middle part bending to the right is so that left longitudinal beam front section front is located at left longitudinal beam front section rear right, and the left stringer back segment middle part is to the right
Bending is so that left stringer back segment rear portion is located at left stringer back segment front right side, the through slot of the left longitudinal beam front section, left stringer middle section
Through slot be connected to the through slot of left stringer back segment；After the right vertical beam assembly is by right vertical beam leading portion, right vertical beam middle section and right vertical beam
Section is constituted, and right vertical beam leading portion rear portion, right vertical beam middle section and right vertical beam back segment front are welded and fixed with right sill strip assembly,
Bending to the left is so that right vertical beam leading portion front is located at right vertical beam leading portion rear left, the right vertical beam in the middle part of the right vertical beam leading portion
So that right vertical beam back segment rear portion is located at right vertical beam back segment front left, the right vertical beam leading portion leads to for bending to the left in the middle part of back segment
Slot, right vertical beam middle section through slot be connected to the through slot of right vertical beam back segment.
Above-mentioned setting is more convenient for the transmitting of power, so that vehicle frame of the present invention is after by side power, front-rear direction power, it can be by impact force
More effectively disperse, to improve the security performance of vehicle frame of the present invention.Wherein, left stringer assembly and right vertical beam assembly are each formed with
The channel of front and back perforation, so that left stringer assembly and right vertical beam assembly can be such that impact force effectively disperses forward or backward.
Preferably, the first crossbeam is connected to bending part and right vertical beam leading portion middle part bending part in the middle part of left longitudinal beam front section
Between, the second cross beam is connected in the middle part of left stringer middle section between the middle part of right vertical beam middle section, and the third crossbeam is connected to
In the middle part of left stringer back segment between bending part and right vertical beam back segment middle part bending part.Above-mentioned setting is more convenient for the transmitting of power, so that this
After invention vehicle frame is by side power, front-rear direction power, impact force can more effectively be dispersed, to improve the peace of vehicle frame of the present invention
Full performance.
Preferably, be equipped with the 4th crossbeam on front side of the first crossbeam, the 4th crossbeam be connected to left longitudinal beam front section with
Between right vertical beam leading portion, the middle channel assembly front end is connected and fixed with the 4th crossbeam, the middle channel assembly rear end and third
Crossbeam is connected and fixed, and the through slot opening of the 4th crossbeam is arranged backward, and the through slot opening of the third crossbeam is arranged forward, institute
It states the 4th crossbeam and third crossbeam is located relatively on the upside of first crossbeam and second cross beam.4th crossbeam is for reinforcing vehicle frame of the present invention
The intensity of front side, with can be to the protection of driver preferably to vehicle frame of the present invention.
Preferably, the left longitudinal beam front section and right vertical beam leading portion front end are fixed with front anticollision beam assembly by fastener,
The left stringer back segment is fixed with back buffer beam assembly by fastener with right vertical beam back segment rear end.Above-mentioned setting is to improve this hair
The crashworthiness of side before and after bright vehicle frame.
Preferably, it is equipped with the first stiffening plate in the through slot at the left longitudinal beam front section rear portion and right vertical beam leading portion rear portion,
The first stiffening plate opposite end is fixed with through slot opposite sides cell wall respectively, and first stiffening plate cross section is arched to be set
It sets.The through slot of left front girder assembly is formed by chamber and is separated into two regions by the first stiffening plate, is substantially increased herein
Stiffness and strength, so that this segment structure does not deform or small deformation occurs when colliding, to guarantee occupant side
Vehicle frame it is firm firm.
Preferably, the through slot of the left sill strip assembly and the opening of left stringer assembly through slot are towards left setting, it is described
Left stringer assembly and left sill strip assembly are fixed so that the left longitudinal beam front section rear portion, left stringer middle section and left stringer back segment front
Through slot opening be closed；The through slot of the right sill strip assembly and the opening of right vertical beam assembly through slot are towards right setting, institute
It states right vertical beam assembly and right sill strip assembly is fixed so that before right vertical beam leading portion rear portion, right vertical beam middle section and right vertical beam back segment
The through slot opening in portion is closed.Above-mentioned setting is so as to the power transmission of power, so that the crashworthiness of vehicle frame of the present invention is more preferable.Not only
Keep the transition of left longitudinal beam front section and left stringer back segment sill strip assembly to the left more smooth, impact force transmitting is more smooth, moreover it is possible to
Guarantee that crew module's is firm firm, substantially reduces the extruding injury that vehicle collision brings occupant.
Preferably, the left sill strip assembly and right sill strip assembly are total by inner panel assembly under A column and threshold internal plate
At inner panel assembly is fixedly welded on the upside of threshold internal plate assembly front end under the A column, corresponding in the middle part of the threshold internal plate assembly
The position of second cross beam is equipped with the second stiffening plate, and second stiffening plate includes side, and opposite sides is equipped with before and after the side
The cell wall of support portion, the support portion and threshold internal plate assembly through slot is mutually fixed.Second stiffening plate is for guaranteeing touching when side impact
Hitting power can be effectively dispersed on second cross beam and left stringer assembly by the second stiffening plate.
Preferably, the left stringer assembly and right vertical beam assembly are in low early and high after structure, the left stringer middle section
The height and position of rear portion lower end surface, left stringer back segment lower end surface height and position be above the height in left stringer middle section front lower ends face
Position is spent, the height and position of right vertical beam middle section rear portion lower end surface, the height and position of right vertical beam back segment lower end surface are above the right side
The height and position in stringer middle section front lower ends face.Above-mentioned setting is so that battery pack can be using in left stringer assembly and right vertical beam assembly
Space on the downside of rear portion increases battery pack volume, to make full use of space to increase battery inclusion quantity, improves the continuous of vehicle
Navigate mileage.
The present invention provides a kind of electric cars, have above-mentioned lower frame.Electric car of the present invention can be using under above-mentioned
The Structural Crashworthiness of portion's body frame structure for automotive, adequately transmitting and absorption collision energy, guarantee the firm firm of crew module's skeleton, thus
Also the battery pack circular by the skeleton structure is protected, the security performance of the vehicle is substantially increased.
The present invention is more preferable with crashworthiness, safety is more preferable, can install more big battery packet so that course continuation mileage is longer
Advantage.
Detailed description of the invention
Fig. 1 is a kind of shaft side figure of lower frame of the present invention；
Fig. 2 is the bottom view of lower frame of the present invention；
Fig. 3 is the A-A cross-sectional view of Fig. 2；
Fig. 4 is a kind of structural schematic diagram of left sill strip assembly of the invention.
Specific embodiment
Below according to the drawings and specific embodiments, the invention will be further described.
As shown in Fig. 1 to Fig. 4, the invention discloses a kind of electric car, electric car has lower frame, lower frame
Including left stringer assembly 1, right vertical beam assembly 2, frame cross assembly, middle channel assembly 3, left sill strip assembly 4 and right sill strip
Assembly 5, frame cross assembly include at least first crossbeam 61, second cross beam 62 and third crossbeam 63, and first crossbeam 61, second is horizontal
Beam 62 and third crossbeam 63, which are all connected with, to be fixed between left stringer assembly 1, right vertical beam assembly 2, and second cross beam 62 is connected and fixed on
Between left 1 middle part of stringer assembly, 2 middle part of right vertical beam assembly, first crossbeam 61 is located on front side of second cross beam 62, and 63, third crossbeam
In 62 rear side of second cross beam, left sill strip assembly 4 is fixed on left 1 left side of stringer assembly, and right sill strip assembly 5 is fixed on right vertical beam
2 right side of assembly, left 1 structure of stringer assembly are identical as 2 structure of right vertical beam assembly and in the left and right pair centered on middle channel assembly 3
Claim setting, middle channel assembly 3 is longitudinally disposed and is connected and fixed with first crossbeam 61, second cross beam 62 and third crossbeam 63, Zuo Zong
Beam assembly 1, right vertical beam assembly 2, frame cross assembly, middle channel assembly 3, left sill strip assembly 4 and right sill strip assembly 5 are mutual
It is welded and fixed to form closo skeleton structure.Wherein, left stringer assembly 1, right vertical beam assembly 2, frame cross assembly, middle channel are total
It is in U-shape at the cross section of 3, left sill strip assembly 4 and right sill strip assembly 5 to have the through slot to a side opening.
Left stringer assembly 1 is made of left longitudinal beam front section 11, left stringer middle section 12 and left stringer back segment 13, left longitudinal beam front section 11
Rear portion, left stringer middle section 12 and left 13 front of stringer back segment are welded and fixed with left sill strip assembly 4, left 11 middle part of longitudinal beam front section
Bending to the right is so that 11 front of left longitudinal beam front section is located at left 11 rear right of longitudinal beam front section, left 13 middle part bending to the right of stringer back segment
So that left 13 rear portion of stringer back segment is located on the right side of left 13 front of stringer back segment.Right vertical beam assembly 2 is by right vertical beam leading portion 21, right vertical beam
Middle section 22 and right vertical beam back segment 23 are constituted, 21 rear portion of right vertical beam leading portion, right vertical beam middle section 22 and 23 front of right vertical beam back segment with
Right sill strip assembly 5 is welded and fixed, and the 21 middle part bending to the left of right vertical beam leading portion is so that 21 front of right vertical beam leading portion is located at right vertical beam
21 rear left of leading portion, before the middle part bending to the left of right vertical beam back segment 23 is so that 23 rear portion of right vertical beam back segment is located at right vertical beam back segment 23
On the left of portion.
First crossbeam 61 is connected between left 11 middle part bending part of longitudinal beam front section and 21 middle part bending part of right vertical beam leading portion, the
Two crossbeams 62 are connected between left 12 middle part of stringer middle section and 22 middle part of right vertical beam middle section, after third crossbeam 63 is connected to left stringer
Between 13 middle part bending parts of section and 23 middle part bending part of right vertical beam back segment.On front side of first crossbeam 61 be equipped with the 4th crossbeam 64, the 4th
Crossbeam 64 is connected between left longitudinal beam front section 11 and right vertical beam leading portion 21, and middle 3 front end of channel assembly connect solid with the 4th crossbeam 64
Fixed, middle 3 rear end of channel assembly is connected and fixed with third crossbeam, and the through slot opening of the 4th crossbeam 64 is arranged backward, third crossbeam 63
Through slot opening be arranged forward, the 4th crossbeam 64 and third crossbeam 63 are located relatively at 62 upside of first crossbeam 61 and second cross beam.
Left longitudinal beam front section 11 and 21 front end of right vertical beam leading portion are fixed with front anticollision beam assembly 7 by fastener, after left stringer
Section 13 is fixed with back buffer beam assembly 8 by fastener with 23 rear end of right vertical beam back segment, and front anticollision beam assembly 7 and back buffer beam are total
Collision energy-absorbing structure is provided on 8.
Left 11 rear portion of longitudinal beam front section, 21 rear portion of right vertical beam leading portion through slot in be equipped with the first stiffening plate 10, first reinforces
10 opposite end of plate is fixed with through slot opposite sides cell wall respectively, and 10 middle section of the first stiffening plate is bent so that cross section is arched sets
It sets.
The through slot of the through slot of left sill strip assembly 4 and left stringer assembly 1 opening is towards left setting, left stringer assembly 1 and a left side
Sill strip assembly 4 is fixed so that the through slot at left 11 rear portion of longitudinal beam front section, 12 middle section of left stringer and left 13 front of stringer back segment is open
It is closed；The opening of 2 through slot of through slot and right vertical beam assembly of right sill strip assembly 5 is towards right setting, right vertical beam assembly 2 and the right side
Sill strip assembly 5 is fixed so that the through slot of 23 front of 21 rear portion of right vertical beam leading portion, right vertical beam middle section 22 and right vertical beam back segment is open
It is closed.
Left sill strip assembly 4 and right sill strip assembly 5 are made of inner panel assembly 41 under A column and threshold internal plate assembly 42,
Inner panel assembly 41 is fixedly welded on the upside of 42 front end of threshold internal plate assembly under A column, and corresponding second is horizontal in the middle part of threshold internal plate assembly 42
The position of beam 62 is equipped with the second stiffening plate 9, and the second stiffening plate 9 includes side 91, and 91 front and back opposite sides of side is equipped with support portion
92, support portion 92 and the cell wall of 42 through slot of threshold internal plate assembly are mutually fixed.
Left stringer assembly 1 and right vertical beam assembly 2 are in low early and high after structure, the height of left 12 rear portion lower end surface of stringer middle section
Spend position, the height and position of left 13 lower end surface of stringer back segment is above the height and position in left 12 front lower ends face of stringer middle section, the right side
The height and position of 22 rear portion lower end surface of stringer middle section, the height and position of 23 lower end surface of right vertical beam back segment are above right vertical beam middle section 22
The height and position in front lower ends face.
Collision energy can be transmitted unobstructedly and be absorbed to lower frame structure through the invention effectively, to effectively change
Kind electric car occupies collision safety problem caused by collision power transmission beam space because of arrangement battery pack.Wherein, lower part vehicle of the present invention
Frame is in low early and high after structure, can be formed with beloid, preceding short rear high battery pack placement region, and battery pack is located at left stringer
Region between in the middle part of assembly and in the middle part of right vertical beam assembly can do it is higher wider, to make full use of space to increase battery pack
Capacity, to improve the course continuation mileage of vehicle.
Claims (10)
1. a kind of electric car lower frame, it is characterised in that lower frame includes left stringer assembly, right vertical beam assembly, vehicle frame cross
Beam assembly, middle channel assembly, left sill strip assembly and right sill strip assembly, it is horizontal that the frame cross assembly includes at least first
Beam, second cross beam and third crossbeam, the first crossbeam, second cross beam and third crossbeam be all connected be fixed on left stringer assembly,
Between right vertical beam assembly, the second cross beam is connected and fixed in the middle part of left stringer assembly, in the middle part of right vertical beam assembly between, described the
One crossbeam is located on front side of second cross beam, and the third crossbeam is located on rear side of second cross beam, and the left sill strip assembly is fixed on a left side
On the left of stringer assembly, the right sill strip assembly is fixed on the right side of right vertical beam assembly, the left stringer assembly structure and right vertical beam
Assembly structure is identical and is in being symmetrical set centered on middle channel assembly, and the middle channel assembly is longitudinally disposed and with the
One crossbeam, second cross beam and third crossbeam are connected and fixed, and left stringer assembly, right vertical beam assembly, frame cross assembly, middle channel are total
It is in U-shape at the cross section of, left sill strip assembly and right sill strip assembly to have the through slot to a side opening.
2. electric car lower frame according to claim 1, it is characterised in that before the left stringer assembly is by left stringer
Section, left stringer middle section and left stringer back segment are constituted, and the left longitudinal beam front section rear portion, left stringer middle section and left stringer back segment front are equal
It is welded and fixed with left sill strip assembly, bending to the right is so that left longitudinal beam front section front is located at left stringer in the middle part of the left longitudinal beam front section
Leading portion rear right, the left stringer back segment middle part bending to the right is so that left stringer back segment rear portion is located at the left stringer back segment front right side
Side, the through slot of the left longitudinal beam front section, left stringer middle section through slot be connected to the through slot of left stringer back segment；The right vertical beam assembly
It is made of right vertical beam leading portion, right vertical beam middle section and right vertical beam back segment, right vertical beam leading portion rear portion, right vertical beam middle section and right vertical beam
Back segment front is welded and fixed with right sill strip assembly, and bending to the left is so that right vertical beam leading portion front in the middle part of the right vertical beam leading portion
Positioned at right vertical beam leading portion rear left, bending to the left is so that right vertical beam back segment rear portion is located at right vertical beam in the middle part of the right vertical beam back segment
Back segment front left, the through slot of the right vertical beam leading portion, the through slot in right vertical beam middle section are connected to the through slot of right vertical beam back segment.
3. electric car lower frame according to claim 2, it is characterised in that the first crossbeam is connected to left stringer
In the middle part of leading portion between bending part and right vertical beam leading portion middle part bending part, the second cross beam is connected in the middle part of left stringer middle section and the right side
Between in the middle part of stringer middle section, the third crossbeam is connected to bending part and right vertical beam back segment middle part bending part in the middle part of left stringer back segment
Between.
4. electric car lower frame according to claim 2 or 3, it is characterised in that be equipped with the on front side of the first crossbeam
Four crossbeams, the 4th crossbeam are connected between left longitudinal beam front section and right vertical beam leading portion, the middle channel assembly front end and the 4th
Crossbeam is connected and fixed, and the middle channel assembly rear end is connected and fixed with third crossbeam, and the through slot opening of the 4th crossbeam is backward
The through slot opening of setting, the third crossbeam is arranged forward, the 4th crossbeam and third crossbeam be located relatively at first crossbeam and
On the upside of second cross beam.
5. electric car lower frame according to claim 2, it is characterised in that before the left longitudinal beam front section and right vertical beam
Duan Qianduan is fixed with front anticollision beam assembly, the left stringer back segment and right vertical beam back segment rear end by fastener and is consolidated by fastener
Surely there is back buffer beam assembly.
6. electric car lower frame according to claim 2, it is characterised in that the left longitudinal beam front section rear portion and the right side are vertical
Be equipped with the first stiffening plate in the through slot at beam leading portion rear portion, the first stiffening plate opposite end respectively with through slot opposite sides slot
Wall is fixed, the arched setting in first stiffening plate cross section.
7. the electric car lower frame according to claim 2 or 6, it is characterised in that the through slot of the left sill strip assembly
It is fixed towards left setting, the left stringer assembly and left sill strip assembly with the opening of left stringer assembly through slot so that described left vertical
The through slot opening at beam leading portion rear portion, left stringer middle section and left stringer back segment front is closed；The right sill strip assembly leads to
The opening of slot and right vertical beam assembly through slot is fixed towards right setting, the right vertical beam assembly and right sill strip assembly so that the right side
The through slot opening at longitudinal beam front section rear portion, right vertical beam middle section and right vertical beam back segment front is closed.
8. electric car lower frame according to claim 2, it is characterised in that the left sill strip assembly and right threshold
Beam assembly is by inner panel assembly under A column and threshold internal plate assembly, and it is total to be fixedly welded on threshold internal plate for inner panel assembly under the A column
At on the upside of front end, the position of corresponding second cross beam is equipped with the second stiffening plate in the middle part of the threshold internal plate assembly, and described second reinforces
Plate includes side, and opposite sides is equipped with support portion, the cell wall of the support portion and threshold internal plate assembly through slot before and after the side
It is mutually fixed.
9. electric car lower frame according to claim 2, it is characterised in that the left stringer assembly and right vertical beam are total
Cheng Juncheng low early and high after structure, the height and position of the left stringer middle section rear portion lower end surface, left stringer back segment lower end surface height
Degree position is above the height and position in left stringer middle section front lower ends face, the height position of right vertical beam middle section rear portion lower end surface
It sets, the height and position of right vertical beam back segment lower end surface is above the height and position in right vertical beam middle section front lower ends face.
10. a kind of electric car, it is characterised in that with lower frame described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811255489.1A CN109204471A (en) | 2018-10-26 | 2018-10-26 | Electric car lower frame and electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811255489.1A CN109204471A (en) | 2018-10-26 | 2018-10-26 | Electric car lower frame and electric car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109204471A true CN109204471A (en) | 2019-01-15 |
Family
ID=64996979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811255489.1A Pending CN109204471A (en) | 2018-10-26 | 2018-10-26 | Electric car lower frame and electric car |
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| CN (1) | CN109204471A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110053671A (en) * | 2019-05-06 | 2019-07-26 | 重庆金康新能源汽车设计院有限公司 | Body structure and vehicle for vehicle |
| CN110190313A (en) * | 2019-04-25 | 2019-08-30 | 众泰新能源汽车有限公司 | Fuel cell pile bandage type compression fit structure and its design method |
| CN113942575A (en) * | 2021-11-22 | 2022-01-18 | 岚图汽车科技有限公司 | Rear longitudinal beam structure of automobile |
| CN115027561A (en) * | 2022-07-11 | 2022-09-09 | 浙江吉利控股集团有限公司 | Floor subassembly and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110190313A (en) * | 2019-04-25 | 2019-08-30 | 众泰新能源汽车有限公司 | Fuel cell pile bandage type compression fit structure and its design method |
| CN110053671A (en) * | 2019-05-06 | 2019-07-26 | 重庆金康新能源汽车设计院有限公司 | Body structure and vehicle for vehicle |
| CN113942575A (en) * | 2021-11-22 | 2022-01-18 | 岚图汽车科技有限公司 | Rear longitudinal beam structure of automobile |
| CN115027561A (en) * | 2022-07-11 | 2022-09-09 | 浙江吉利控股集团有限公司 | Floor subassembly and vehicle |
| CN115027561B (en) * | 2022-07-11 | 2023-11-28 | 浙江吉利控股集团有限公司 | Floor sub-assembly and vehicle |
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