CN102897228A - Rear floor assembly structure for plug-in hybrid electric vehicle - Google Patents
Rear floor assembly structure for plug-in hybrid electric vehicle Download PDFInfo
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- CN102897228A CN102897228A CN2012104341171A CN201210434117A CN102897228A CN 102897228 A CN102897228 A CN 102897228A CN 2012104341171 A CN2012104341171 A CN 2012104341171A CN 201210434117 A CN201210434117 A CN 201210434117A CN 102897228 A CN102897228 A CN 102897228A
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Abstract
The invention discloses a rear floor assembly structure for a plug-in hybrid electric vehicle, which comprises a rear-floor front part and a rear-floor rear part, wherein a left side longitudinal beam and a right side longitudinal beam extending to the downside of the rear-floor rear part are respectively arranged on the two sides of the downside of the rear-floor front part, a cross beam is connected between the left side longitudinal beam and the right side longitudinal beam below the rear-floor front part and is connected with a fuel tank and an exhaust pipe muffler, a battery compartment is arranged on the rear-floor rear part between the left side longitudinal beam and the right side longitudinal beam, a battery pack is hung above the battery compartment, the front end of the battery pack is connected with a battery cooling system, and the battery cooling system is fixed above the rear-floor front part. According to the rear floor assembly structure, a mode of directly loading floors in the conventional thinking is abandoned, but the battery pack is hung above a rear floor at the bottom of a suitcase and loaded on the side longitudinal beams, so that the strength is ensured, and meanwhile a stable fixation state is formed; and through reasonable partitioning, spaces above and below the rear floor are fully used, so that the function components such as the battery pack and the cooling system thereof, the fuel tank and the exhaust pipe muffler are reasonably arranged on a vehicle body.
Description
Technical field
The present invention relates to the automobile rear floor assembly structure, refer to particularly a kind of rear floor assembly structure of plug-in hybrid-power automobile.
Background technology
Along with the development of auto-domain, new-energy automobile is praised highly gradually, and the new functional requirement that continues to bring out certainly will cause the new breakthrough of body structure design.Wherein, plug-in hybrid-power automobile is a oil-electric vehicle, has both needed engine drive, needs again motor-driven; Should the oil bunkering case, fill again electrokinetic cell.Under the prerequisite of considering freeing pipe, fuel tank arrangement space, arrange electrokinetic cell, all multiple components are arranged in the particularly difficulty that just seems on a vehicle body; And the electrokinetic cell volume is larger, and weight is heavier, in design motivation battery arrangement space and fixed installation structure, easily has influence on realization, bus body strength and the safety performance thereof of car body component function.
Summary of the invention
The objective of the invention is for the problems referred to above, a kind of rear floor assembly structure of plug-in hybrid-power automobile is provided, should after the floor assembly structure can guarantee bus body strength and safety performance and consider muffler of gas escape tube and the prerequisite of fuel tank arrangement space under, properly arrange and securely stationary power battery and cooling system thereof.
For achieving the above object, the technical solution used in the present invention is: a kind of rear floor assembly structure of plug-in hybrid-power automobile, it is characterized in that: it comprises rear ground prelaminar part and rear rear floor, lower front both sides, rear floor are respectively equipped with left side longeron and the right longeron that extends to rear rear floor below, be connected with crossbeam between the left side longeron of rear floor lower front and the right longeron, be connected with fuel tank and muffler of gas escape tube on the crossbeam, rear rear floor between left side longeron and the right longeron is provided with battery flat, power brick has suspended above the battery flat, the front end of power brick is connected with battery cooling system, and battery cooling system is fixed on rear floor front upper.
The present invention is arranged on battery flat between the left and right longeron, so that the power brick fixed sturcture in the battery flat can be carried on the left and right longeron, forms together the higher skeleton structure of intensity, has also guaranteed bus body strength in firm stationary battery bag; Power brick is suspended in the top on floor behind the bottom of luggage case of cancellation spare tyre, abandon the direct bearing mode in floor in the conventional thought, when reaching safe and reliable fixedly purpose, avoid power brick directly to contact with rear floor and produced vibrations distortion and noise, form higher safety performance; The present invention is by the reasonable piecemeal to rear floor, take full advantage of the space of above and below, rear floor, when placing electrokinetic cell bag and battery cooling system with maximum space, so that rear floor each functor connection and reasonable arrangement of upper and lower, satisfy layout and the fixedly requirement of the functors such as back seat seat cushion, fuel tank, muffler of gas escape tube, and good punching press, welding, assembly process process are arranged, and good body performance; Good manufacturability of the present invention, cost is low, satisfies vehicle body function and lightweight requirements, for the design of Future New Energy Source automotive floor panel structure provides technical support and with reference to model.
Further, the front end of described battery flat is provided with front shrouding, and front shrouding is fitted in the top of crossbeam, and the rear end of battery flat is provided with rear shrouding, and battery flat and front shrouding and rear shrouding form box like structure.Consider the cube structure of electrokinetic cell, in the situation that manufacturing process allows power battery cabin to be designed to the box like structure of corner angle as far as possible; For guaranteeing maximum electrokinetic cell placement space and consider punching press, welding process feasibility, rear floor is divided into rear ground prelaminar part, rear rear floor, front shrouding and rear shrouding four block structures, to make things convenient for design and the welding of skeleton below it.
Again further, described crossbeam comprises front cross rail, and center member and after cross member, after cross member are fitted in the below of front shrouding.Rear floor frame forms framed structure by three crossbeams, two longerons, with the rear floor of its top weld together securely, forms higher intensity, can carry the electrokinetic cell weight of increase fully, has also improved body performance.
Further, described power brick place battery flat inner and upper and and the bottom surface of battery flat and side between leave the gap, the left and right sides of power brick is respectively equipped with outstanding outward hanger, have screw on the hanger, the left and right sides of battery flat is respectively equipped with rack beams, hanger is captiveed joint with rack beams, and rack beams is fixed on the rear floor.Power brick is suspended in the inner and upper of battery flat by both sides hanger and being connected of rack beams, power brick does not all directly contact with the side with the bottom surface of battery flat, thereby has avoided power brick directly to contact with rear floor and produce vibrations, distortion and noise.
Preferably, the transversal surface of described rack beams is " several " font, one side of rack beams is fixed on the rear rear floor on left side longeron or the right longeron, the bottom of the opposite side of rack beams is fitted on the battery flat inwall of left side longeron or longeron inboard, the right, have screw on the rack beams, the rack beams of screw below is provided with nutplate.The outward outshot of hanger is buckled on the screw top of rack beams and cooperates with the nutplate of rack beams bottom, behind screw on the screw bolt passes hanger, the screw and nutplate on the rack beams, power brick is fixed on the rack beams of rear rear floor steadily, securely.
Preferably, the back segment of described rear ground prelaminar part is provided with the battery front deck of sinking, the leading portion middle part of rear ground prelaminar part is provided with the mounting groove of sinking, the both sides of mounting groove are respectively equipped with the anti-dive beam of back seat, the leading portion below of rear ground prelaminar part is provided with fuel tank and muffler of gas escape tube, and battery cooling system is fixed in the mounting groove.The battery front deck is used for the battery control components and parts of placing battery bag front portion; Rear floor anteriomedial becomes the feed ditch shape to recessed, consists of the mounting groove of battery cooling system, and mounting groove is used for placing the stationary battery cooling system; About anti-dive beam is divided into two sections.
Preferably, described battery cooling system comprises cooling blast pipe and mouthpiece cover, and mouthpiece cover is nested on the cooling blast pipe mouth of pipe and is pressed abd fixed on rear ground prelaminar part front end, and the top of cooling blast pipe is provided with protective case.The air intake pipe orifice place of cooling blast pipe arranges mouthpiece cover, and it is installed in the front end of rear ground prelaminar part, and namely can realize ventilating smooth and easy in back seat seat cushion front lower place, stops foreign matter to enter, and the air intake pipe orifice of having avoided again cooling off blast pipe directly exposes and affects outward appearance; Protective case is used for preventing that battery cooling blast pipe is subject to the pressure of back seat seat cushion top and is extruded distortion.
Preferably, described mouthpiece cover comprises top board and the side plate of captive joint, and side plate is provided with the opening relative with cooling off the blast pipe mouth of pipe, is provided with the grid that extends in the blast pipe pipe to cooling off in the opening.Mouthpiece cover is fixed by top board and side plate and rear ground front edge of board; Opening on the side plate is used for air intake; Both can be used for preventing to cooling off the grid that extends in the blast pipe that foreign matter from entering in the blast pipe, also be conducive to mouthpiece cover and the Primary Location of cooling off blast pipe.
Preferably, the rear end of described battery front deck is connected with front shrouding, is provided with electrokinetic cell control components and parts in the battery front deck.
Preferably, described front cross rail is provided with fuel tank suspension hook and freeing pipe suspension hook.Fuel tank suspension hook and freeing pipe suspension hook are used for installing fuel tank and freeing pipe.
Further preferably, described after cross member is flat " several " font, the front shrouding of after cross member and its top, and the rear end of rear ground prelaminar part is welded together to form a closed cross-section beam.The after cross member topside matches with the bottom section of front shrouding and forms sealing surface and fix, and is conducive to guarantee the intensity of crossbeam.
Still more preferably, described center member is provided with the safety strap fixed support.The safety strap fixed support provides the below attachment point for rear row's safety strap.
Description of drawings
Fig. 1 is rear floor assembly structure region schematic diagram.
Fig. 2 is rear floor assembly structural representation.
Fig. 3 is the plan structure schematic diagram on rear floor among Fig. 2.
Fig. 4 is rear ground partition organization schematic diagram among Fig. 2.
Fig. 5 is the annexation schematic diagram of battery flat and front shrouding and rear shrouding among Fig. 2.
Fig. 6 is the sectional schematic diagram of hanger and rack beams junction among Fig. 2.
Fig. 7 is the annexation schematic diagram of Fig. 2 medium-height trestle beam and nutplate.
Fig. 8 is the annexation schematic diagram that cools off blast pipe and mouthpiece cover among Fig. 2.
Fig. 9 is the skeleton structure schematic diagram of below, rear floor among Fig. 2.
Figure 10 be among Fig. 2 after the floor look up structural representation.
Figure 11 is Fig. 2 IFO intermediate fuel oil case and the scheme of installation of muffler of gas escape tube below rear floor.
Figure 12 is the component structural schematic diagram on rear floor among Fig. 2.
The specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments, be convenient to more clearly understand the present invention, but they do not consist of restriction to the present invention.
Such as Fig. 1, the present invention in shared zone on the body platform shown in the dotted line frame 1 among the figure.
Such as Fig. 2, shown in Figure 3, the present invention includes rear ground prelaminar part 2 and rear rear floor 3, both sides, rear ground prelaminar part 2 below are respectively equipped with left side longeron 4 and the right longeron 5 that extends to rear rear floor 3 belows, the rear rear floor 3 that left side longeron 4 and the right longeron are 5 is designed to the battery flat 9 that transversal surface is down " several " font, the front end of described battery flat 9 is provided with front shrouding 12, the rear end of battery flat 9 is provided with rear shrouding 13, battery flat 9 forms box like structure (such as Fig. 4 with front shrouding 12 and rear shrouding 13, Fig. 5), the left and right sides of battery flat 9 is along on the floor, that is: a left side, the right longeron 4, on the rear floor on 5, respectively be welded with the rack beams 14 that a transversal surface is " several " font, one side of rack beams 14 is fixed on the rear rear floor 3 on left side longeron 4 or the right longeron 5, the bottom of the opposite side of rack beams 14 is fitted on battery flat 9 inwalls of left side longeron 4 or the right longeron 5 inboards, rack beams 14, rear rear floor 3, and longeron three layered materials in limit are welded together to form the higher skeleton structure of intensity, the bottom welding of each side stand beam 14 has three nutplate 23(such as Fig. 6, Fig. 7), rack beams 14 is captiveed joint with three hangers 20 that are welded on respectively power brick 10 left and right sides by bolt, and so that power brick 10 bottoms directly do not contact with sidepiece with the bottom of battery flat 9, thereby power brick 10 is suspended in battery flat 9 tops; The outside of right side rack beams 14 is provided with storage battery pedestal 22.The front end of power brick 10 is connected with electrokinetic cell control components and parts 18 and battery cooling system 11, battery control components and parts 18 and battery cooling system 11 are fixed on rear ground prelaminar part 2 tops, battery cooling system 11 comprises the parts such as cooling blast pipe 1101 and mouthpiece cover 1102, the cross-sectional plane of described mouthpiece cover 1102 is L-shaped, the top board 1103 and the side plate 1104 that comprise captive joint, side plate 1104 is provided with the opening 1105 relative with cooling off blast pipe 1101 mouths of pipe, be provided with in the opening 1105 to interior grid 1106(such as the Fig. 8 that extends of cooling blast pipe 1101 pipes), mouthpiece cover 1102 is nested on cooling blast pipe 1101 mouths of pipe and the front end that is bolted to rear ground prelaminar part 2 by top board 1103 and 1107 places, side plate 1104 bolts at two ends holes, compress carpet, rear ground prelaminar part 2 is according to H point height, the thickness of back seat seat cushion, cooling blast pipe 1101, fuel tank 7, layout and the shape of freeing pipe design, wherein, the back segment of rear ground prelaminar part 2 is provided with the battery front deck 15 of sinking, the rear end of battery front deck 15 is connected with front shrouding 12, and battery front deck 15 is used for placing electrokinetic cell control components and parts 18; The lower mounting groove 16 that is recessed into, is the sinking of feed ditch shape in the middle of the leading portion middle part of rear ground prelaminar part 2 is provided with; be placed with cooling blast pipe 1101 in this mounting groove 16; the top of cooling blast pipe 1101 is provided with protective case 19; this protective case 19 is used for preventing from cooling off blast pipe 1101 and is subject to the pressure of back seat seat cushion top and is extruded distortion; protective case 19 is fixed on the both sides of mounting groove 16, and the mounting groove 16 front end left and right sides are respectively equipped with the anti-dive beam 17 of back seat.
In addition, such as Fig. 9, shown in Figure 10,5 of the left side longeron 4 of rear ground prelaminar part 2 belows and the right longerons are connected with front cross rail 601 successively, center member 602 and after cross member 603, left side longeron 4, the right longeron 5 and three crossbeams be the structure rear floor frame together, rear floor frame is " 8 " word closed annular in rear ground prelaminar part, described after cross member 603 is flat " several " font, be fitted in the below of front shrouding 12, after cross member 603 is welded together to form a closed cross-section beam with the front shrouding 12 of rear ground prelaminar part 2, rear rear floor 3; Be welded with fuel tank suspension hook and freeing pipe suspension hook on the described front cross rail 601, be used for installing fuel tank 7 and the muffler of gas escape tube 8 of the leading portion below of being located at rear ground prelaminar part 2, fuel tank 7 and muffler of gas escape tube 8 are in back seat seat cushion below (such as Figure 11); Be welded with attachment point bracket reinforcing plate 20 under rear row's safety strap on the center member 602, center member 602 and after cross member 603 are provided with the rear suspension attachment point with left and right limit longeron 4,5 lap-joints.Rear ground edges of boards longeron is carried throughout, and longeron 5 rear portions in the right are welded with the rear haulage seat board, and the rear haulage seat board is provided with rear haulage ring 21.Wherein, the planform of front cross rail 601 can be done respective design along with the planform of rear ground prelaminar part 2 structures and mounting groove 16; Battery front deck 15 in the situation that do not affect after cross member 603 intensity, increases spatial accommodation for to do large heavy stand downwards as far as possible; Because power brick 10 places former spare tyre position, behind the cancellation spare tyre, can in driver's tool, increase the fast tyre repiring external member.
As shown in figure 12, rear floor frame of the present invention forms the stable structure form by three crossbeams, two longerons, and the power brick 10 of battery flat 9 tops is fixed on the rack beams 14, and rack beams 14 intensity are higher, power brick 10 there is good carrying effect, has improved the intensity of vehicle body; Battery flat 9 takes full advantage of the rear floor frame beam and forms enough large space holding power brick 10, and has guaranteed that itself there are larger strength and stiffness on rear floor, and does not affect the intensity of rear-suspending point; The present invention takes full advantage of about the rear floor, side space satisfies electrokinetic cell fixing the requirement and passenger's travelling comfort requirement is installed, the rear floor of this structure, can arrange electrokinetic cell, good electrokinetic cell fixed form is arranged again, also can arrange power battery cooling system, satisfy the operating needs of plug-in hybrid-power automobile.Empirical tests, bulk strength of the present invention, rigidity are not less than basic car; Through the trial-production trial assembly, anufacturability is good.
Claims (12)
1. the rear floor assembly structure of a plug-in hybrid-power automobile, it is characterized in that: it comprises rear ground prelaminar part (2) and rear rear floor (3), both sides, rear ground prelaminar part (2) below are respectively equipped with left side longeron (4) and the right longeron (5) that extends to rear rear floor (3) below, be connected with crossbeam (6) between the left side longeron (4) of rear ground prelaminar part (2) below and the right longeron (5), be connected with fuel tank (7) and muffler of gas escape tube (8) on the crossbeam (6), rear rear floor (3) between left side longeron (4) and the right longeron (5) is provided with battery flat (9), power brick (10) has suspended above the battery flat (9), the front end of power brick (10) is connected with battery cooling system (11), and battery cooling system (11) is fixed on rear ground prelaminar part (2) top.
2. the rear floor assembly structure of plug-in hybrid-power automobile according to claim 1, it is characterized in that: the front end of described battery flat (9) is provided with front shrouding (12), front shrouding (12) is fitted in the top of crossbeam (6), the rear end of battery flat (9) is provided with rear shrouding (13), and battery flat (9) forms box like structure with front shrouding (12) and rear shrouding (13).
3. the rear floor assembly structure of plug-in hybrid-power automobile according to claim 2, it is characterized in that: described crossbeam (6) comprises front cross rail (601), center member (602) and after cross member (603), after cross member (603) is fitted in the below of front shrouding (12).
4. the rear floor assembly structure of plug-in hybrid-power automobile according to claim 1, it is characterized in that: described power brick (10) place battery flat (9) inner and upper and and the bottom surface of battery flat (9) and side between leave the gap, the left and right sides of power brick (10) is respectively equipped with outstanding outward hanger (20), hanger has screw on (20), the left and right sides of battery flat (9) is respectively equipped with rack beams (14), hanger (20) is captiveed joint with rack beams (14), and rack beams (14) is fixed on the rear floor.
5. the rear floor assembly structure of plug-in hybrid-power automobile according to claim 4, it is characterized in that: the transversal surface of described rack beams (14) is " several " font, one side of rack beams (14) is fixed on the rear rear floor (3) on left side longeron (4) or the right longeron (5), the bottom of the opposite side of rack beams (14) is fitted on battery flat (9) inwall of left side longeron (4) or the right longeron (5) inboard, rack beams has screw on (14), and the rack beams (14) of screw below is provided with nutplate (23).
6. the rear floor assembly structure of plug-in hybrid-power automobile according to claim 1, it is characterized in that: the back segment of described rear ground prelaminar part (2) is provided with the battery front deck (15) of sinking, the leading portion middle part of rear ground prelaminar part (2) is provided with the mounting groove (16) of sinking, the both sides of mounting groove (16) are respectively equipped with the anti-dive beam (17) of back seat, the leading portion below of rear ground prelaminar part (2) is provided with fuel tank (7) and muffler of gas escape tube (8), and battery cooling system (11) is fixed in the mounting groove (16).
7. according to claim 1 or the rear floor assembly structure of 6 described plug-in hybrid-power automobiles; it is characterized in that: described battery cooling system (11) comprises cooling blast pipe (1101) and mouthpiece cover (1102); mouthpiece cover (1102) is nested on cooling blast pipe (1101) mouth of pipe and is pressed abd fixed on rear ground prelaminar part (2) front end, and the top of cooling blast pipe (1101) is provided with protective case (19).
8. the rear floor assembly structure of plug-in hybrid-power automobile according to claim 6, it is characterized in that: described mouthpiece cover (1102) comprises top board (1103) and the side plate (1104) of captive joint, side plate (1104) is provided with the opening (1105) relative with cooling off blast pipe (1101) mouth of pipe, is provided with in the opening (1105) to the interior grid (1106) that extends of cooling blast pipe (1101) pipe.
9. the rear floor assembly structure of plug-in hybrid-power automobile according to claim 6, it is characterized in that: the rear end of described battery front deck (15) is connected with front shrouding (12), is provided with electrokinetic cell control components and parts (18) in the battery front deck (15).
10. the rear floor assembly structure of plug-in hybrid-power automobile according to claim 3, it is characterized in that: described front cross rail (601) is provided with fuel tank suspension hook and freeing pipe suspension hook.
11. the rear floor assembly structure of plug-in hybrid-power automobile according to claim 3, it is characterized in that: described after cross member (603) is flat " several " font, the front shrouding (12) of after cross member (603) and its top, and the rear end of rear ground prelaminar part (2) is welded together to form a closed cross-section beam.
12. the rear floor assembly structure of plug-in hybrid-power automobile according to claim 3 is characterized in that: described center member (602) is provided with safety strap fixed support (20).
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| CN201210434117.1A CN102897228B (en) | 2012-11-01 | 2012-11-01 | The rear floor assembly structure of plug-in hybrid-power automobile |
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| CN201210434117.1A CN102897228B (en) | 2012-11-01 | 2012-11-01 | The rear floor assembly structure of plug-in hybrid-power automobile |
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| CN102897228B CN102897228B (en) | 2015-08-12 |
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| CN103523100A (en) * | 2013-10-31 | 2014-01-22 | 东风汽车公司 | Rear floor assembly structure of plug-in hybrid vehicle |
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| CN109703629A (en) * | 2019-02-28 | 2019-05-03 | 爱驰汽车有限公司 | Rear floor structure and electric car |
| WO2019185022A1 (en) * | 2018-03-30 | 2019-10-03 | 比亚迪股份有限公司 | Front floor assembly and automobile |
| CN111114652A (en) * | 2020-02-13 | 2020-05-08 | 吴春涛 | Multi-size multi-power platform vehicle body structure and platform vehicle with same |
| CN112347559A (en) * | 2020-10-27 | 2021-02-09 | 东风汽车集团有限公司 | Power assembly layout feasible region determination method |
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| CN113306381A (en) * | 2021-06-29 | 2021-08-27 | 重庆长安汽车股份有限公司 | Battery pack installation frame of pure electric vehicle |
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| CN103523100B (en) * | 2013-10-31 | 2016-06-22 | 东风汽车公司 | Floor assembly structure after plug-in hybrid-power automobile |
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| CN109703629A (en) * | 2019-02-28 | 2019-05-03 | 爱驰汽车有限公司 | Rear floor structure and electric car |
| CN114269636B (en) * | 2019-08-19 | 2023-10-31 | 宝马股份公司 | Motor vehicle group |
| CN114269636A (en) * | 2019-08-19 | 2022-04-01 | 宝马股份公司 | Motor vehicle set |
| JP2021041836A (en) * | 2019-09-11 | 2021-03-18 | スズキ株式会社 | Vehicle body lower structure |
| JP7388070B2 (en) | 2019-09-11 | 2023-11-29 | スズキ株式会社 | Underbody structure |
| CN111114652A (en) * | 2020-02-13 | 2020-05-08 | 吴春涛 | Multi-size multi-power platform vehicle body structure and platform vehicle with same |
| CN112347559A (en) * | 2020-10-27 | 2021-02-09 | 东风汽车集团有限公司 | Power assembly layout feasible region determination method |
| CN112347559B (en) * | 2020-10-27 | 2022-08-30 | 东风汽车集团有限公司 | Power assembly layout feasible region determining method |
| CN115214332A (en) * | 2021-03-30 | 2022-10-21 | 本田技研工业株式会社 | Electric vehicle |
| CN115214332B (en) * | 2021-03-30 | 2024-05-14 | 本田技研工业株式会社 | Electric vehicle |
| CN113306381A (en) * | 2021-06-29 | 2021-08-27 | 重庆长安汽车股份有限公司 | Battery pack installation frame of pure electric vehicle |
| CN113306381B (en) * | 2021-06-29 | 2023-04-25 | 重庆长安汽车股份有限公司 | Battery pack mounting frame of pure electric automobile |
| CN115320356A (en) * | 2022-08-29 | 2022-11-11 | 重庆长安汽车股份有限公司 | Power battery protection frame assembly, battery pack mounting structure and hybrid electric vehicle |
| CN115320356B (en) * | 2022-08-29 | 2024-05-03 | 重庆长安汽车股份有限公司 | Power battery protection frame assembly, battery pack mounting structure and hybrid electric vehicle |
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