CN111319688A - Integrated lightweight frame flat ground plate section assembly structure - Google Patents
Integrated lightweight frame flat ground plate section assembly structure Download PDFInfo
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- CN111319688A CN111319688A CN202010192940.0A CN202010192940A CN111319688A CN 111319688 A CN111319688 A CN 111319688A CN 202010192940 A CN202010192940 A CN 202010192940A CN 111319688 A CN111319688 A CN 111319688A
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- floor
- plate
- integrated
- section
- assembly structure
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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
-
- 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
Abstract
The invention discloses an integrated light-weight vehicle frame flat floor section assembly structure which comprises a floor main body, first connecting pieces, second connecting pieces and buckling cover plates, wherein the floor main body is formed by splicing a plurality of floor sectional materials together; the two sides of the floor section bar are provided with buckle structure plates, and the buckle cover plate is provided with a second buckle part which can buckle the buckle structure plates on two adjacent floor section bars together; and a third clamping part which is matched with the clamping structure plate to realize clamping is arranged on the first connecting piece. The invention can realize rapid integrated assembly, convenient assembly and high integral strength, and realizes lightweight design.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of automobile floor assemblies, in particular to an integrated light-weight frame flat ground plate section assembly structure.
[ background of the invention ]
As is well known, electric vehicles are in a high-speed development period, but the weight of a battery pack cannot be reduced due to the limitation of energy density of a battery, and thus the weight reduction of the electric vehicles is urgent. The floor of the existing passenger car is mostly made of plywood or bamboo plywood, and particularly, the middle-section flat ground plate is large in size and area and large in weight ratio, so that the light weight of the whole car is seriously hindered. In the prior art, the middle flat floor is generally erected on a supporting framework at the bottom, the assembling process is complicated, a large number of bolts are required to be connected or riveted or even welded, the assembling efficiency is low, the manufacturing process of the floor sectional material is difficult, and the process complexity is increased.
Therefore, there is a need to provide a new integrated light-weight vehicle frame floor segment assembly structure to solve the above problems.
[ summary of the invention ]
The invention mainly aims to provide an integrated light-weight vehicle frame flat land plate section assembly structure which can realize rapid integrated assembly, is convenient to assemble and high in integrated strength and realizes light-weight design.
The invention realizes the purpose through the following technical scheme: an integrated light-weight vehicle frame flat floor section assembly structure comprises a floor main body, first connecting pieces, second connecting pieces and buckling cover plates, wherein the floor main body is formed by splicing a plurality of floor sectional materials together; the two sides of the floor section bar are provided with buckle structure plates, and the buckle cover plate is provided with a second buckle part which can buckle the buckle structure plates on two adjacent floor section bars together; and a third clamping part which is matched with the clamping structure plate to realize clamping is arranged on the first connecting piece.
Furthermore, the floor sectional material comprises a first rectangular frame plate, buckle structure plates and a bottom supporting part, wherein a first hollow cavity is formed in the first rectangular frame plate, the buckle structure plates are positioned on two sides of the first rectangular frame plate, and the bottom supporting part is positioned on two sides of the first rectangular frame plate and extends downwards to form the bottom supporting part.
Furthermore, the bottom supporting part comprises a second hollow cavity and a bottom mounting seat for supporting the second hollow cavity.
Furthermore, the first hollow cavity and the second hollow cavity are filled with light foaming filling plates.
Further, the bottom mounting seat is provided with a mounting groove which has an inward opening and is used for accommodating and fixing the T-shaped bolt.
Furthermore, the bottom installation seats of two adjacent floor profiles are attached to each other and connected together through rivets or bolts.
Furthermore, the first connecting piece comprises a section bar body provided with a T-shaped bolt accommodating groove and a third buckling part arranged at the bottom of the section bar body.
Furthermore, the second connecting piece comprises a second rectangular frame plate, a first connecting plate surface, a second connecting plate surface and a vertical connecting plate, wherein the first connecting plate surface horizontally extends outwards from one side of the second rectangular frame plate and is inserted into the first hollow cavity and is attached to the first surface of the first rectangular frame plate, the second connecting plate surface is inserted into the first hollow cavity and is attached to the second surface of the first rectangular frame plate, and the vertical connecting plate is connected with the second connecting plate surface and the second rectangular frame plate.
Further, a nut plate is arranged in an inner cavity of the second rectangular frame plate, and a pressing boss for pressing the nut plate is arranged on the wall surface of the inner cavity of the second rectangular frame plate.
Furthermore, a plurality of transverse supporting beams are further arranged on the floor main body, the transverse supporting beams on the same straight line are divided into a plurality of sections, and each section of transverse supporting beam is arranged corresponding to the floor section bar; two ends of each section of the transverse supporting beam abut against two opposite inner side surfaces of the bottom mounting seat in the floor section bar; the front side surface and the rear side surface of the transverse supporting beam are provided with T-shaped bolt mounting grooves, and the transverse supporting beam and the bottom mounting seat are fixedly connected together through an L-shaped angle connecting piece and a T-shaped bolt.
Compared with the prior art, the integrated light-weight vehicle frame flat land plate section assembly structure has the beneficial effects that:
1) the floor sectional material is provided with a bottom supporting structure, so that an additional supporting assembly is omitted, the assembly procedures are reduced, the number of assemblies is reduced, and the overall weight is reduced;
2) the floor sectional material adopts an internal hollow structure, the lightweight design is realized on the premise of meeting the strength requirement, and the heat-insulating and noise-reducing material is arranged in the hollow cavity, so that the heat-insulating and noise-reducing functions are realized;
3) the clamping structure is arranged on the two sides of the floor profiles, and the clamping assembly of the floor is realized by matching with the clamping cover plate, so that the process operation of bolt connection is reduced, the punching process requirement in the original bolt connection is saved, the process difficulty is reduced, the assembly between the floor profiles is more convenient and efficient, and the assembly efficiency is improved;
4) the left side and the right side of the floor section are provided with first connecting pieces in a clamping mode, the first connecting pieces are provided with T-shaped bolt mounting grooves which are matched with the T-shaped bolt mounting grooves at the lower part of the floor section, and the upper part and the lower part of the floor assembly are firmly and fixedly connected with the side wall framework through structural rivets, so that the installation is convenient and efficient, and the connection efficiency and convenience of the floor assembly at the middle section of the frame and the side wall framework are greatly improved;
5) the front end and the rear end of the floor section are provided with the second connecting pieces in a bolt connection mode, or a riveting mode, or a bonding mode, or a welding mode, and the quick connection with the front section and the rear section of the frame can be quickly realized through the nut plates pre-embedded in the second connecting pieces, so that the connection and the assembly of the middle section of the frame and the front section and the rear section of the frame are greatly facilitated, and the assembly efficiency is improved;
6) floor section bar is from taking bottom sprag structure, and the floor assembly that the horizontal supporting beam that cooperation bottom sprag structure department set up formed can directly be used as the frame middle section, directly is connected with frame front and back section structure, side wall skeleton, need not additionally to set up the frame middle section, greatly reduced frame weight, have great meaning to improving electric automobile's continuation of the journey mileage.
[ description of the drawings ]
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a floor section according to an embodiment of the present invention;
FIG. 3 is a schematic view of a portion of one end of a floor section according to an embodiment of the present invention;
FIG. 4 is a schematic view of a snap-fit cover plate according to an embodiment of the present invention;
FIG. 5 is a schematic view of a connection structure of two adjacent floor sections according to an embodiment of the present invention;
FIG. 6 is a schematic view of a connecting structure of the floor section, the first connecting member and the side wall frame according to the embodiment of the present invention;
FIG. 7 is a schematic view of a connection structure of the floor section and the second connecting member according to the embodiment of the present invention;
FIG. 8 is a schematic view of the connection structure of the floor section, the second connecting member and the front and rear frame sections according to the embodiment of the present invention;
FIG. 9 is a schematic view of the connection structure of the transverse support beam at the bottom of the floor section according to the embodiment of the present invention;
the figures in the drawings represent:
100 integrated lightweight frame floor segment assembly structure; 101, a side wall framework; 102 front and rear section frame structures; 103 a first surface; 104 a second surface;
1, a floor profile, 11, a first rectangular frame plate and 111, a first hollow cavity; 12 buckling structural plates, 121 a first supporting plate, 122 a second supporting plate, 123 a first buckling part and 124 a buckling groove; 13 bottom support part, 131 third support plate, 132 fourth support plate, 133 bottom mount, 1331 fifth support plate, 1332 sixth support plate, 1333 first hook part, 1334 seventh support plate, 1335 mounting slot, 1336 second hook part, 134 second hollow cavity; 14 light weight foamed infill panels;
2, a floor main body;
3 a first connecting piece, a 31T-shaped bolt accommodating groove, a 32 section bar body and a 33 third buckling part;
4 second connecting piece, 41 second rectangular frame plate, 42 first connecting plate surface, 43 second connecting plate surface, 44 vertical connecting plate, 45 nut plate, 46 pressing boss and 47 bolt;
5 buckling the cover plate, 51 the eighth supporting plate and 52 the second buckling part;
6. 7, 8 rivets;
9 transverse support beam, 91T-shaped bolt mounting groove, 92L-shaped angle connecting piece and 93T-shaped bolt.
[ detailed description ] embodiments
Example (b):
referring to fig. 1 to 9, the present embodiment is an integrated light-weight vehicle frame flat floor section assembly structure 100, which includes a floor main body 2 formed by splicing a plurality of floor sections 1 together, first connecting members 3 disposed on the left and right sides of the floor main body 2 and connecting the floor sections 1 with a side frame 101, second connecting members 4 disposed on the front and rear ends of the floor main body 2 and connecting the floor sections 1 with a front and rear section frame structure 102, and a cover plate 5 for fastening two adjacent floor sections 1 together.
The floor section bar 1 includes a first rectangular frame plate 11 having a first hollow cavity 111 formed therein, fastening structure plates 12 located at two sides of the first rectangular frame plate 11, and bottom support portions 13 located at two sides of the first rectangular frame plate 11 and extending downward. The front and rear ends of the first rectangular frame plate 11 are free extension ends, the length of the first rectangular frame plate is designed according to automobile parameters, and the front and rear ends of the first hollow cavity 111 are in a through penetrating structure.
The fastening structure plate 12 includes a first support plate 121 extending outward perpendicular to the side of the first rectangular frame plate 11, a second support plate 122 extending upward vertically from the free end of the first support plate 121, a first fastening portion 123 formed by turning over the free end of the second support plate 122 inward, and a fastening groove 124 formed by surrounding the fastening structure plate 12 and the side of the first rectangular frame plate 11.
The bottom support portion 13 includes a third support plate 131 and a fourth support plate 132 which are vertically arranged in parallel, and a bottom mounting seat 133 arranged at the bottom of the third support plate 131 and the bottom of the fourth support plate 132, the top of the third support plate 131 and the first rectangular frame plate 11 are integrated, and the top of the fourth support plate 132 extends to the bottom of the first support plate 121 in the buckle structure plate 12, so as to support the buckle structure plate 12. The bottom support portion 13 further includes a second hollow cavity 134 surrounded by the third support plate 131, the snap structure plate 12, the fourth support plate 132, and the bottom mounting seat 133. The light foaming filling plates 14 are filled in the first hollow cavity 111 and the second hollow cavity 134.
In this embodiment, the third supporting plate 131 is flush with the side plate surface of the first rectangular frame plate 11. In another embodiment, the top of the third supporting plate 131 extends to the bottom surface of the first rectangular frame plate 11, and supports the first rectangular frame plate 11.
The bottom mounting seat 133 includes a fifth supporting plate 1331 vertically disposed, a sixth supporting plate 1332 horizontally extending outward from the top of the fifth supporting plate 1331 and supporting the third supporting plate 131 and the fourth supporting plate 132, and a first hook portion 1333 formed by bending downward and inward from the free end of the sixth supporting plate 1332. A seventh support plate 1334 horizontally disposed is provided at the bottom of the fifth support plate 1331, and a free end of the seventh support plate 1334 is provided with a second hook part 1336 forming a mounting groove 1335 with the first hook part 1333. The mounting slot 1335 formed by the support plate and the bent hook portion of the bottom mount 133 may be used to receive a fixing T-bolt for connection with other profiles.
The fastening cover plate 5 includes an eighth supporting plate 51 flush with the upper surface of the first rectangular frame plate 11, and a second fastening portion 52 bent downward from two ends of the eighth supporting plate 51 and fastened to the first fastening portion 123 in a matching manner. In two adjacent floor section bars 1, the lateral surface of buckle structure board 12 is laminated mutually to buckle two first rectangle frame boards 11 together through lock apron 5. The second latching portion 52 fills the latching groove 124 to form a latching structure with the first latching portion 123 for latching connection.
In two adjacent floor profiles 1, the outer side surfaces of the fifth supporting plates 1331 of the two bottom mounting seats 133 are attached and fixedly connected together through the rivet 7.
The lateral surface of the floor section bar 1 at the outermost side of the left and right sides of the floor main body 2 is attached to the surface of the side wall framework, and a rivet 8 for fixedly connecting the floor section bar 1 and the side wall framework together is arranged at the position of the mounting groove 1335.
The first connecting member 3 includes a section body 32 provided with a T-shaped bolt receiving groove 31, and a third fastening portion 33 disposed at the bottom of the section body 32 and cooperating with the fastening structure plate 12 in the floor section 1 to realize fastening. One side surface of the section bar body 32 is attached to the side wall framework and is fixedly connected with the side wall framework through a rivet 6. The T-bolt receiving groove 31 is provided with a T-bolt (not shown) for fixing other structural members such as a seat.
The second connector 4 includes a second rectangular frame plate 41, a first connecting plate 42 extending horizontally outward from a side plate surface of the second rectangular frame plate 41 and inserted into the first hollow cavity 111 and attached to the first surface 103 of the first rectangular frame plate 11, a second connecting plate 43 inserted into the first hollow cavity 111 and attached to the second surface 104 of the first rectangular frame plate 11, and a vertical connecting plate 44 connecting the second connecting plate 43 and the second rectangular frame plate 41. The inner cavity of the second rectangular frame plate 41 is provided with a nut plate 45, and the wall surface of the inner cavity of the second rectangular frame plate 41 is provided with a pressing boss 46 which presses the nut plate 45. The second connecting piece 4 is fixedly connected with the L-shaped connecting piece on the frame front-rear section structure 102 through a nut plate 45 and a bolt 47. The first connecting plate surface 42 and the second connecting plate surface 43 are welded, or bonded, or riveted with two surfaces of the floor section 1. Even here adopts the welding, compare with original welded structure, the welding area in this scheme structure is little and the welding number of times is few, can not exert an influence to overall structure intensity.
A height difference is provided between the upper surface of the first connecting plate 42 and the upper surface of the second rectangular frame plate 41, and the height difference is equal to the thickness of one plate surface of the floor section bar 1, so that the upper surface of the second rectangular frame plate 41 is flush with the upper surface of the floor section bar 1. The lower plate surface of the second rectangular frame plate 41 is provided with a plurality of mounting holes (not shown) for bolts to pass through.
The floor main body 2 is also provided with a plurality of transverse supporting beams 9, the transverse supporting beams 9 on the same straight line are divided into a plurality of sections, and each section is arranged corresponding to the floor section 1. The two ends of each cross brace 9 are held against the two opposite inside surfaces of the bottom mounting seat 133 in the floor profile 1. The front and rear side surfaces of the transverse support beam 9 are provided with T-shaped bolt mounting grooves 91, and the transverse support beam 9 and the bottom mounting seat 133 are fixedly connected together through an L-shaped angle connector 92 and a T-shaped bolt 93. The mounting groove 1335 and the T-bolt mounting groove 91 are each provided therein with a T-bolt 93. The supporting strength of the frame middle section floor assembly can be enhanced through the transverse supporting beam 9.
In the present embodiment, the integrated light-weight vehicle frame flat land plate segment assembly structure 100 is configured such that, during assembly, first, the side portions of the floor profiles 1 are placed in close contact with each other, then the fastening cover plate 5 is axially (i.e. longitudinally) inserted from one end of the position where the fastening structure plates 12 of two adjacent floor profiles 1 are in close contact with each other, at this time, the fastening cover plate 5 and the fastening structure plates 12 are in snap-fit connection with each other to realize the snap-fit connection of the two adjacent floor profiles 1, and the bottom mounting seat 133 is further fixedly connected to the lower portions of the two floor profiles 1 by the structural rivet 7; then repeating the steps to finish the clamping connection section floor main body 2 of all the floor sections 1; then, second connecting pieces 4 are arranged at the front end and the rear end of the floor main body 2, and a first connecting plate surface 42 and a second connecting plate surface 43 in each second connecting piece 4 are fixedly connected with the upper plate surface and the lower plate surface in the floor section bar 1 in a riveting, welding or bonding mode; finally, the first connecting pieces 3 are installed on the left side and the right side of the floor main body 2, the third buckling parts 33 at the bottoms of the first connecting pieces 3 are axially inserted from one ends of the floor section bar 1 and the buckling structural plates 12, and the first connecting pieces 3 are connected with the floor section bar 1 in a clamping mode through the clamping matching of the third buckling parts 33 and the buckling structural plates 12, so that the whole vehicle frame middle section floor assembly is assembled. When the frame front-rear section structure 102 is connected, the lower surface of the second rectangular frame plate 41 of the second connecting piece 4 can be placed on the L-shaped connecting piece on the frame front-rear section structure 102, and fixed connection is realized through bolts; when the first connecting piece 3 is connected with the side wall framework 101, the first connecting piece 3 is directly fixedly connected with the side wall framework 101 through the rivet 8 and the rivet 6.
The beneficial effects of this embodiment integrated form lightweight frame flat ground plate section assembly structure 100 lie in:
1) the floor sectional material is provided with a bottom supporting structure, so that an additional supporting assembly is omitted, the assembly procedures are reduced, the number of assemblies is reduced, and the overall weight is reduced;
2) the floor sectional material adopts an internal hollow structure, the lightweight design is realized on the premise of meeting the strength requirement, and the heat-insulating and noise-reducing material is arranged in the hollow cavity, so that the heat-insulating and noise-reducing functions are realized;
3) the clamping structure is arranged on the two sides of the floor profiles, and the clamping assembly of the floor is realized by matching with the clamping cover plate, so that the process operation of bolt connection is reduced, the punching process requirement in the original bolt connection is saved, the process difficulty is reduced, the assembly between the floor profiles is more convenient and efficient, and the assembly efficiency is improved;
4) the left side and the right side of the floor section are provided with first connecting pieces in a clamping mode, the first connecting pieces are provided with T-shaped bolt mounting grooves which are matched with the T-shaped bolt mounting grooves at the lower part of the floor section, and the upper part and the lower part of the floor assembly are firmly and fixedly connected with the side wall framework through structural rivets, so that the installation is convenient and efficient, and the connection efficiency and convenience of the floor assembly at the middle section of the frame and the side wall framework are greatly improved;
5) the front end and the rear end of the floor section are provided with the second connecting pieces in a bolt connection mode, or a riveting mode, or a bonding mode, or a welding mode, and the quick connection with the front section and the rear section of the frame can be quickly realized through the nut plates pre-embedded in the second connecting pieces, so that the connection and the assembly of the middle section of the frame and the front section and the rear section of the frame are greatly facilitated, and the assembly efficiency is improved;
6) floor section bar is from taking bottom sprag structure, and the floor assembly that the horizontal supporting beam that cooperation bottom sprag structure department set up formed can directly be used as the frame middle section, directly is connected with frame front and back section structure, side wall skeleton, need not additionally to set up the frame middle section, greatly reduced frame weight, have great meaning to improving electric automobile's continuation of the journey mileage.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides an integrated form lightweight frame level land plate section assembly structure which characterized in that: the floor comprises a floor main body formed by splicing a plurality of floor profiles, first connecting pieces arranged on the left side and the right side of the floor main body and used for connecting the floor profiles with a side wall framework, second connecting pieces arranged on the front end and the rear end of the floor main body and used for connecting the floor profiles with a front section frame structure and a rear section frame structure, and a buckling cover plate for buckling two adjacent floor profiles together; the two sides of the floor section bar are provided with buckle structure plates, and the buckle cover plate is provided with a second buckle part which can buckle the buckle structure plates on two adjacent floor section bars together; and a third clamping part which is matched with the clamping structure plate to realize clamping is arranged on the first connecting piece.
2. The integrated, lightweight vehicle frame land segment assembly structure of claim 1, wherein: the floor sectional material comprises a first rectangular frame plate, buckle structure plates and a bottom supporting portion, wherein a first hollow cavity is formed in the first rectangular frame plate, the buckle structure plates are located on two sides of the first rectangular frame plate, and the bottom supporting portion is located on two sides of the first rectangular frame plate and extends downwards to form the bottom supporting portion.
3. The integrated, lightweight vehicle frame land segment assembly structure of claim 2, wherein: the bottom supporting part comprises a second hollow cavity and a bottom mounting seat for supporting the second hollow cavity.
4. The integrated, lightweight vehicle frame land segment assembly structure of claim 3, wherein: and light foaming filling plates are filled in the first hollow cavity and the second hollow cavity.
5. The integrated, lightweight vehicle frame land segment assembly structure of claim 3, wherein: the bottom mounting seat is provided with an installation groove with an inward opening and used for accommodating and fixing the T-shaped bolt.
6. The integrated, lightweight vehicle frame land segment assembly structure of claim 3, wherein: the bottom mounting seats of two adjacent floor profiles are arranged in a mutually attached mode and are connected together through rivets or bolts.
7. The integrated, lightweight vehicle frame land segment assembly structure of claim 1, wherein: the first connecting piece comprises a section bar body provided with a T-shaped bolt accommodating groove and a third buckling part arranged at the bottom of the section bar body.
8. The integrated, lightweight vehicle frame land segment assembly structure of claim 2, wherein: the second connecting piece includes second rectangle deckle board, certainly second rectangle deckle board one side face level extends outwards to insert in the first cavity and with the first connection face that the first surface of first rectangle deckle board pasted mutually, insert in the first cavity and with the second connection face that the second surface of first rectangle deckle board pasted mutually, connect the second connect the face with the vertical connecting plate of second rectangle deckle board.
9. The integrated, lightweight vehicle frame land segment assembly structure of claim 8, wherein: and a nut plate is arranged in the inner cavity of the second rectangular frame plate, and a pressing boss for pressing the nut plate is arranged on the wall surface of the inner cavity of the second rectangular frame plate.
10. The integrated, lightweight vehicle frame land segment assembly structure of claim 3, wherein: the floor main body is also provided with a plurality of transverse supporting beams, the transverse supporting beams on the same straight line are divided into a plurality of sections, and each section of transverse supporting beam is arranged corresponding to the floor section bar; two ends of each section of the transverse supporting beam abut against two opposite inner side surfaces of the bottom mounting seat in the floor section bar; the front side surface and the rear side surface of the transverse supporting beam are provided with T-shaped bolt mounting grooves, and the transverse supporting beam and the bottom mounting seat are fixedly connected together through an L-shaped angle connecting piece and a T-shaped bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010192940.0A CN111319688A (en) | 2020-03-18 | 2020-03-18 | Integrated lightweight frame flat ground plate section assembly structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010192940.0A CN111319688A (en) | 2020-03-18 | 2020-03-18 | Integrated lightweight frame flat ground plate section assembly structure |
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| CN111319688A true CN111319688A (en) | 2020-06-23 |
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| CN202010192940.0A Pending CN111319688A (en) | 2020-03-18 | 2020-03-18 | Integrated lightweight frame flat ground plate section assembly structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230827A (en) * | 2022-08-17 | 2022-10-25 | 上海汽车集团股份有限公司 | Lower vehicle body framework and vehicle |
-
2020
- 2020-03-18 CN CN202010192940.0A patent/CN111319688A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230827A (en) * | 2022-08-17 | 2022-10-25 | 上海汽车集团股份有限公司 | Lower vehicle body framework and vehicle |
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