CN112918237A - New forms of energy passenger train's automobile body top cap - Google Patents
New forms of energy passenger train's automobile body top cap Download PDFInfo
- Publication number
- CN112918237A CN112918237A CN202110478161.1A CN202110478161A CN112918237A CN 112918237 A CN112918237 A CN 112918237A CN 202110478161 A CN202110478161 A CN 202110478161A CN 112918237 A CN112918237 A CN 112918237A
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- CN
- China
- Prior art keywords
- top cover
- partition plate
- tray
- reinforcing rib
- body top
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000000463 material Substances 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 13
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 8
- 239000004917 carbon fiber Substances 0.000 claims abstract description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000003365 glass fiber Substances 0.000 claims abstract description 5
- 239000006260 foam Substances 0.000 claims abstract description 4
- 238000005192 partition Methods 0.000 claims description 30
- 230000003014 reinforcing effect Effects 0.000 claims description 20
- 239000010410 layer Substances 0.000 claims description 14
- 238000001704 evaporation Methods 0.000 claims description 10
- 230000008020 evaporation Effects 0.000 claims description 10
- 239000002344 surface layer Substances 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000003892 spreading Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3223—Cooling devices using compression characterised by the arrangement or type of the compressor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3227—Cooling devices using compression characterised by the arrangement or the type of heat exchanger, e.g. condenser, evaporator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3229—Cooling devices using compression characterised by constructional features, e.g. housings, mountings, conversion systems
-
- 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
- B62D25/06—Fixed roofs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
- B62D29/043—Superstructures
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a new forms of energy passenger train's automobile body top cap, includes a top cap main part, and the top cap main part adopts combined material integrated into one piece, and integrated overhead air conditioner base, overhead power battery box fixed tray and skylight installation tang have in this top cap main part, and combined material is three-layer sandwich structure, including extexine, sandwich layer and bottom, extexine and bottom are carbon fiber material, glass fiber material or by the two fibrous structure of spreading the layer formation in turn, sandwich layer is one of them for rigid foam, PET or honeycomb material. The invention can realize the integrated design and molding of each component mounting structure and the top cover structure, fully exert the bearing capacity of the composite top cover structure, effectively realize the lightweight and intensive design of the top cover, realize the modular mounting and manufacturing of the top cover, greatly reduce the number of parts and reduce the mass by more than 30 percent compared with the traditional top cover.
Description
Technical Field
The invention relates to the technical field of new energy passenger cars, in particular to a car body top cover of a new energy passenger car.
Background
In recent years, new energy buses increasingly adopt an arrangement mode of arranging a battery at the top. For example, the chinese utility model with the license number CN 207388834U discloses a battery bracket for battery overhead, which comprises a rectangular frame structure formed by welding square pipes, a power battery is fixedly connected to the square pipes inside the rectangular frame structure through bolts, and the whole rectangular frame structure is fixedly connected to the fixed position of the roof of the vehicle body through a connecting piece. The overhead battery bracket does not occupy the space in the vehicle, has enough height, can save the wading test of the whole vehicle and reduce the test cost of the whole vehicle.
However, this overhead cell arrangement still has the following disadvantages: 1. the structure is complicated, and the welding workload is large. 2. The rectangular frame structure is formed by welding square pipes, so that the mass is large, and the overall weight of the passenger car is increased. 3. Space utilization and integration are poor, resulting in the increase of the top height of the bus. Therefore, the new energy bus body top cover is provided.
Disclosure of Invention
The invention provides a vehicle body top cover of a new energy bus, which aims to overcome the defects of complex structure, large mass, poor space utilization rate, poor integration effect and the like of the existing vehicle body top cover.
The invention adopts the following technical scheme:
the utility model provides a new forms of energy passenger train's automobile body top cap, includes a top cap main part, the top cap main part adopts combined material integrated into one piece, and integrated overhead air conditioner base, overhead power battery box fixed tray and skylight installation tang have in this top cap main part, combined material is three-layer sandwich structure, including extexine, sandwich layer and bottom, extexine and bottom are carbon fiber material, glass fiber material or by the two fibrous structure of spreading the layer formation in turn, sandwich layer is one of them for rigid foam, PET or honeycomb material.
Further, the outer surface layers of the top-mounted air conditioner base and the top-mounted power battery box fixing tray are made of carbon fibers.
Further, overhead air conditioner base includes parallel interval arrangement's anterior horizontal separators, middle part horizontal separators and rear portion horizontal separators, anterior horizontal separators with form a compressor and electrical part chamber between the horizontal separators of middle part, middle part horizontal separators with be equipped with right side longitudinal baffle, left side longitudinal baffle and two middle section longitudinal baffles between the horizontal separators of rear portion, be equipped with right side evaporation fan and evaporator core coelom between right side longitudinal baffle and its adjacent middle section longitudinal baffle, be equipped with condensation fan and condenser core coelom between two middle section longitudinal baffles, be equipped with left side evaporation fan and evaporator core coelom between left side longitudinal baffle and its adjacent middle section longitudinal baffle.
Furthermore, the compressor and electric device cavity, the right side evaporation fan and evaporator core cavity, the condensation fan and condenser core cavity and the left side evaporation fan and evaporator core cavity are all provided with a plurality of pre-embedded fixing structures I.
Further, overhead power battery box fixed tray, including tray base and battery cover connection pterygoid lamina, be equipped with the vertical strengthening rib in battery tray right side, the horizontal strengthening rib in battery tray right side, the vertical strengthening rib in battery tray middle section, the horizontal strengthening rib in battery tray left side rear side, the vertical strengthening rib in battery tray left side, the horizontal strengthening rib in battery tray left side and the horizontal strengthening rib in battery tray middle section in tray base.
Furthermore, a plurality of embedded fixing structures II are arranged on each reinforcing rib on the tray base.
Furthermore, a plurality of pre-embedded fixing structures III are arranged on the skylight installation seam allowance.
Further, the first embedded fixing structure, the second embedded fixing structure and the third embedded fixing structure all comprise embedded nuts and square gaskets welded with the embedded nuts.
As can be seen from the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:
the invention adopts the composite material integrated forming technology, integrates the base structure of the passenger car overhead air conditioner, the overhead power battery box body fixing tray structure and the skylight installation seam allowance structure on the composite material top cover, realizes the integrated design and forming of each component installation structure and the top cover structure, fully exerts the bearing capacity of the composite material top cover structure, effectively realizes the lightweight and intensive design of the top cover, and can realize the modularized installation and manufacturing of the top cover, compared with the traditional top cover, the number of parts is greatly reduced, and the quality is reduced by more than 30%.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the overhead air conditioner base of the present invention.
Fig. 3 is a schematic structural view of the overhead power battery box fixing tray of the invention.
Fig. 4 is a sectional view taken along a-a in fig. 3.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings. Numerous details are set forth below in order to provide a thorough understanding of the present invention, but it will be apparent to those skilled in the art that the present invention may be practiced without these details. Well-known components, methods and processes are not described in detail below.
The utility model provides a new forms of energy passenger train's automobile body top cap, refers to fig. 1, includes a top cap main part 1, top cap main part 1 adopts combined material integrated into one piece, and integrated on this top cap main part 1 has overhead air conditioner base 20, overhead power battery box fixed tray 30 and skylight installation tang 40.
Referring to fig. 4, the composite material is a three-layer sandwich structure, and includes an outer surface layer 11, a sandwich layer 12 and a bottom layer 13, where the outer surface layer 11 and the bottom layer 13 are both made of carbon fiber material, glass fiber material or fiber structure formed by alternately laying the two, and the sandwich layer 12 is one of rigid foam, PET or honeycomb material. Wherein, because the local stress of the top-mounted air-conditioning base 20 and the top-mounted power battery box fixing tray 30 is large, the outer surface layers of the two are preferably made of carbon fiber.
Referring to fig. 2, the overhead air conditioner base 20 is used for fixing an air conditioner, and includes a front transverse partition 21, a middle transverse partition 22 and a rear transverse partition 23 which are arranged in parallel at intervals, a compressor and electric device cavity 211 is formed between the front transverse partition 21 and the middle transverse partition 22, a right longitudinal partition 24, a left longitudinal partition 26 and two middle longitudinal partitions 25 are arranged between the middle transverse partition 22 and the rear transverse partition 23, a right evaporator fan and evaporator core cavity 241 is arranged between the right longitudinal partition 24 and the adjacent middle longitudinal partition 25, a condenser fan and condenser core cavity 251 is arranged between the two middle longitudinal partitions 25, and a left evaporator fan and evaporator core cavity 261 is arranged between the left longitudinal partition 26 and the adjacent middle longitudinal partition 25.
Referring to fig. 3, the overhead power battery box fixing tray 30 is mainly used for fixing a battery pack, and includes a tray base 31 and a battery cover connecting wing plate 32, wherein a battery tray right longitudinal reinforcing rib 311, a battery tray right transverse reinforcing rib 312, a battery tray middle section longitudinal reinforcing rib 313, a battery tray left rear transverse reinforcing rib 314, a battery tray left longitudinal reinforcing rib 315, a battery tray left transverse reinforcing rib 316 and a battery tray middle section transverse reinforcing rib 317 are arranged in the tray base 31. The existence of the reinforcing ribs not only improves the strength of the local structure, but also provides a connecting position for the battery pack. The battery pack is connected with the reinforcing ribs through bolts, and the weight of the battery pack is borne and transmitted through the reinforcing ribs.
Referring to fig. 1 to 3, the compressor and electric device cavity 211, the right evaporation fan and evaporator core cavity 241, the condensation fan and condenser core cavity 251, and the left evaporation fan and evaporator core cavity 261 are all provided with a plurality of pre-embedded fixing structures one. And a plurality of embedded fixing structures II are arranged on each reinforcing rib on the tray base 31. The skylight installation seam allowance 40 is provided with a plurality of pre-embedded fixing structures III. Referring to fig. 4, the first pre-embedded fixing structure, the second pre-embedded fixing structure and the third pre-embedded fixing structure all include pre-embedded nuts 51 and square gaskets 52 welded to the pre-embedded nuts 51.
The invention adopts the composite material integrated forming technology, integrates the base structure of the passenger car overhead air conditioner, the overhead power battery box body fixing tray structure and the skylight installation seam allowance structure on the composite material top cover, realizes the integrated design and forming of each component installation structure and the top cover structure, fully exerts the bearing capacity of the composite material top cover structure, effectively realizes the lightweight and intensive design of the top cover, and can realize the modularized installation and manufacturing of the top cover, compared with the traditional top cover, the number of parts is greatly reduced, and the quality is reduced by more than 30%.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (8)
1. The utility model provides a new forms of energy passenger train's automobile body top cap, includes a top cap main part, its characterized in that: the top cover main body is integrally formed by composite materials, an overhead air conditioner base, an overhead power battery box body fixing tray and a skylight installation seam allowance are integrated on the top cover main body, the composite materials are of a three-layer sandwich structure and comprise an outer surface layer, a sandwich layer and a bottom layer, the outer surface layer and the bottom layer are made of carbon fiber materials and glass fiber materials or are made of carbon fiber materials and glass fiber materials which are alternately laid, and the sandwich layer is made of one of hard foam, PET or honeycomb materials.
2. The vehicle body top cover of the new energy bus is characterized in that: the outer surface layers of the top-mounted air conditioner base and the top-mounted power battery box body fixing tray are made of carbon fibers.
3. The vehicle body top cover of the new energy bus is characterized in that: the overhead air conditioner base comprises a front transverse partition plate, a middle transverse partition plate and a rear transverse partition plate which are arranged in parallel at intervals, the front transverse partition plate and the middle transverse partition plate form a compressor and an electric device cavity, the middle transverse partition plate and the rear transverse partition plate are provided with a right longitudinal partition plate, a left longitudinal partition plate and two middle longitudinal partition plates, a right evaporation fan and an evaporator core cavity are arranged between the right longitudinal partition plate and the adjacent middle longitudinal partition plate, a condensation fan and a condenser core cavity are arranged between the two middle longitudinal partition plates, and a left evaporation fan and an evaporator core cavity are arranged between the left longitudinal partition plate and the adjacent middle longitudinal partition plate.
4. The vehicle body top cover of the new energy passenger vehicle as claimed in claim 3, wherein: the compressor and electric device cavity, the right side evaporation fan and evaporator core cavity, the condensation fan and condenser core cavity and the left side evaporation fan and evaporator core cavity are all provided with a plurality of pre-embedded fixing structures I.
5. The vehicle body top cover of the new energy passenger vehicle as claimed in claim 4, wherein: the fixed tray of the overhead power battery box body comprises a tray base and a battery cover connecting wing plate, wherein a battery tray right longitudinal reinforcing rib, a battery tray right transverse reinforcing rib, a battery tray middle section longitudinal reinforcing rib, a battery tray left rear side transverse reinforcing rib, a battery tray left side longitudinal reinforcing rib, a battery tray left side transverse reinforcing rib and a battery tray middle section transverse reinforcing rib are arranged in the tray base.
6. The vehicle body top cover of the new energy passenger vehicle as claimed in claim 5, wherein: and a plurality of embedded fixing structures II are arranged on each reinforcing rib on the tray base.
7. The vehicle body top cover of the new energy passenger vehicle as claimed in claim 6, wherein: and a plurality of pre-embedded fixing structures III are arranged on the skylight installation seam allowance.
8. The vehicle body top cover of the new energy passenger vehicle as claimed in claim 7, wherein: the first embedded fixing structure, the second embedded fixing structure and the third embedded fixing structure respectively comprise embedded nuts and square gaskets welded with the embedded nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110478161.1A CN112918237A (en) | 2021-04-30 | 2021-04-30 | New forms of energy passenger train's automobile body top cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110478161.1A CN112918237A (en) | 2021-04-30 | 2021-04-30 | New forms of energy passenger train's automobile body top cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112918237A true CN112918237A (en) | 2021-06-08 |
Family
ID=76174793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110478161.1A Pending CN112918237A (en) | 2021-04-30 | 2021-04-30 | New forms of energy passenger train's automobile body top cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112918237A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2761494Y (en) * | 2004-10-13 | 2006-03-01 | 北京理工大学 | New type ultra-low floor electric bus |
| US20080006461A1 (en) * | 2005-01-07 | 2008-01-10 | Yoshiaki Naganuma | Vehicle |
| TW201111202A (en) * | 2009-09-16 | 2011-04-01 | Mao-Shung Liao | System and method for fast replacing power battery of electric vehicle |
| CN203496905U (en) * | 2013-09-30 | 2014-03-26 | 南车株洲电力机车有限公司 | Rail train insulating top cover made of composite materials |
| CN205376686U (en) * | 2015-12-18 | 2016-07-06 | 郑州宇通客车股份有限公司 | Power battery cooling system and use electric automobile of this system |
| CN205930125U (en) * | 2016-08-19 | 2017-02-08 | 厦门金龙汽车空调有限公司 | Electricelectric motor car battery thermal management air conditioning system |
| CN206217616U (en) * | 2016-10-31 | 2017-06-06 | 大连比亚迪汽车有限公司 | A kind of electric motor coach |
| CN207388834U (en) * | 2017-10-09 | 2018-05-22 | 南京金龙客车制造有限公司 | A kind of overhead battery bracket |
| CN110382328A (en) * | 2017-02-09 | 2019-10-25 | 中车青岛四方机车车辆股份有限公司 | Compartment for rail vehicle |
| CN210502171U (en) * | 2019-07-22 | 2020-05-12 | 深圳市艾特网能技术有限公司 | Top-mounted air conditioner shell and top-mounted air conditioner |
| CN111416080A (en) * | 2020-03-30 | 2020-07-14 | 力神动力电池系统有限公司 | Lightweight composite material battery box |
| CN212765665U (en) * | 2020-05-13 | 2021-03-23 | 上海熙众新能源技术有限公司 | Full flat low floor vehicle arrangement structure and electric vehicle |
-
2021
- 2021-04-30 CN CN202110478161.1A patent/CN112918237A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2761494Y (en) * | 2004-10-13 | 2006-03-01 | 北京理工大学 | New type ultra-low floor electric bus |
| US20080006461A1 (en) * | 2005-01-07 | 2008-01-10 | Yoshiaki Naganuma | Vehicle |
| TW201111202A (en) * | 2009-09-16 | 2011-04-01 | Mao-Shung Liao | System and method for fast replacing power battery of electric vehicle |
| CN203496905U (en) * | 2013-09-30 | 2014-03-26 | 南车株洲电力机车有限公司 | Rail train insulating top cover made of composite materials |
| CN205376686U (en) * | 2015-12-18 | 2016-07-06 | 郑州宇通客车股份有限公司 | Power battery cooling system and use electric automobile of this system |
| CN205930125U (en) * | 2016-08-19 | 2017-02-08 | 厦门金龙汽车空调有限公司 | Electricelectric motor car battery thermal management air conditioning system |
| CN206217616U (en) * | 2016-10-31 | 2017-06-06 | 大连比亚迪汽车有限公司 | A kind of electric motor coach |
| CN110382328A (en) * | 2017-02-09 | 2019-10-25 | 中车青岛四方机车车辆股份有限公司 | Compartment for rail vehicle |
| US20190389494A1 (en) * | 2017-02-09 | 2019-12-26 | Crrc Qingdao Sifang Co., Ltd. | Car body for a rail vehicle |
| CN207388834U (en) * | 2017-10-09 | 2018-05-22 | 南京金龙客车制造有限公司 | A kind of overhead battery bracket |
| CN210502171U (en) * | 2019-07-22 | 2020-05-12 | 深圳市艾特网能技术有限公司 | Top-mounted air conditioner shell and top-mounted air conditioner |
| CN111416080A (en) * | 2020-03-30 | 2020-07-14 | 力神动力电池系统有限公司 | Lightweight composite material battery box |
| CN212765665U (en) * | 2020-05-13 | 2021-03-23 | 上海熙众新能源技术有限公司 | Full flat low floor vehicle arrangement structure and electric vehicle |
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Application publication date: 20210608 |