CN114759301A - Intensive low-cost flexible battery pack box body connecting method - Google Patents
Intensive low-cost flexible battery pack box body connecting method Download PDFInfo
- Publication number
- CN114759301A CN114759301A CN202210582707.2A CN202210582707A CN114759301A CN 114759301 A CN114759301 A CN 114759301A CN 202210582707 A CN202210582707 A CN 202210582707A CN 114759301 A CN114759301 A CN 114759301A
- Authority
- CN
- China
- Prior art keywords
- battery pack
- box body
- lower box
- connection
- cost flexible
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
Abstract
The invention discloses an intensive low-cost flexible battery pack box body connecting method, which comprises the following steps: an independent connecting component is not additionally arranged in the lower box body of the battery pack, but a fixed connecting point which must exist in the existing battery pack is used as a connecting point between the upper cover and the lower box body of the battery pack, so that the connection of the box body of the battery pack is realized. The invention optimizes the internal structure, improves the module arrangement volume in the lower box body, improves the space utilization rate and the whole package energy density on the basis of maintaining the basic structure of the lower box body, and realizes the connection between the upper cover and the lower box body of the battery package through a specially designed structure on the basis of the existing connection structure of the lower box body and the module.
Description
Technical Field
The invention relates to the technical field of new energy automobiles. More particularly, the invention relates to an intensive low-cost flexible battery pack box body connecting method.
Background
With the continuous increase of the automobile holding capacity in China, the problems of energy shortage and environmental pollution caused by the continuous increase are more prominent. Therefore, China vigorously promotes new energy automobiles, and electric vehicles are developed in an important way.
The battery pack is one of the key parts of the electric vehicle and is used for loading power battery cores, so that the battery pack technology is very important for the electric vehicle. Meanwhile, the battery pack has high requirements on various performances, such as sealing performance, flame retardant performance, strength, rigidity, impact resistance, vibration resistance, extrusion resistance, heat conduction performance, puncture resistance and the like, and is expected to have the lightest weight in order to improve the energy density of the whole battery pack, so that the structure and the design of the battery pack are very complex. Meanwhile, the endurance mileage is improved in the future, and the battery pack is larger, so that the upper cover and the lower box body of the battery pack are connected to form a new problem. For guarantee joint strength, reduce the span between the tie point, reduce 1 vibration of upper cover, improve the NVH performance, except that the hoop round will set up the tie point all around of box 2 down, still need set up extra connection structure 3 at box internal design tie point promptly, as shown in figure 1 and figure 2, lead to 2 internal design complicacies of box down, manufacturing cost increases, a great deal of problems such as box inner space utilization reduction.
Disclosure of Invention
The invention aims to provide an intensive low-cost flexible battery pack box body connecting method, which optimizes the internal structure, improves the module arrangement volume in a lower box body, improves the space utilization rate and improves the whole pack energy density on the basis of maintaining the basic structure of the lower box body, and realizes the connection between an upper cover and the lower box body of a battery pack through a specially designed structure on the basis of the existing connecting structure of the lower box body and the module.
To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, there is provided a flexible battery pack case coupling method including: an independent connecting component is not additionally arranged in the lower box body of the battery pack, but a fixed connecting point which must exist in the existing battery pack is used as a connecting point between the upper cover and the lower box body of the battery pack, so that the connection of the box body of the battery pack is realized.
Preferably, the fixed connection point between the lower box body and the module of the existing battery pack is used as the connection point between the upper cover and the lower box body of the battery pack, so that the connection of the battery pack box body is realized.
Preferably, at least two fixed connecting points between the lower box body and the module are selected to be connected with at least one connecting point on the upper cover through a connecting support, and at least one connecting support is arranged to realize the connection of the battery pack box body.
Preferably, the connecting brackets are arranged across the mould or across the mould set in the same longitudinal direction.
Preferably, the connecting bracket connects two or more or all modules that are adjacent in the same longitudinal direction.
Preferably, the connecting bracket is in a shape like a Chinese character 'ji', two sides of the bottom of the connecting bracket are respectively connected with the fixed connecting points between the lower box body of the battery pack and the module, and the top of the connecting bracket is connected with the connecting points of the upper cover.
Preferably, the linking bracket spans two or more or all modules in the transverse direction within the same longitudinal direction.
Preferably, the connecting support longitudinally spans the modules in the same longitudinal direction, and two or more transverse modules are respectively connected to two sides of the bottom of the connecting support.
Preferably, the connection bracket is provided with at least one reinforcing plate in a height direction thereof.
Preferably, the bottom of the connecting bracket is provided with a pair of positioning plates protruding downwards.
The invention at least comprises the following beneficial effects:
1. the utility model provides a connection method, upper cover and lower box are lug connection not, need not set up separate extra connection structure under the box is structural, including roof beam, post and support, and use the module fixed point, will descend box, module and leg joint together, save the internal space of lower box, the effectual module space that has improved, can also reduce box structure weight simultaneously, from the many-sided energy density who improves the battery package of space and quality.
2. The flexible degree of this application is high, can confirm quantity and the position of tie point according to whole package performance demand, need not carry out extra design, and the later stage adjustment is nimble simultaneously, and the adjustment space is big, and the restriction is low.
3. This application is with low costs, and the connecting piece can use aluminium alloy ex-trusions, and the processing such as sheet metal component of bending both can use the aluminum product, also can use steel, and connecting piece material selection range is wide, can reduce frock input quantity simultaneously, and single frock is with low costs, effectively reduces whole battery package manufacturing cost.
4. The connecting support is simple in structure, convenient to use, flexible, capable of being designed according to performance requirements in a diversified mode, convenient to install and low in process cost.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic structural diagram of a conventional connection method for a box according to the present invention;
FIG. 2 is a top view of a conventional case connection of the present invention;
FIG. 3 is a schematic view showing the structure of the case connecting embodiment 1 of the present invention;
FIG. 4 is a schematic structural view of embodiment 2 of the tank connecting mode of the present invention;
FIG. 5 is a schematic structural view of embodiment 3 of the tank connecting mode of the present invention;
FIG. 6 is a schematic view showing a detailed structure of a connection bracket according to embodiment 1 of the connection mode of the case body of the present invention;
FIG. 7 is a schematic view showing a detailed structure of a coupling bracket according to embodiment 2 of the tank coupling structure of the present invention;
FIG. 8 is a schematic view showing a detailed structure of a coupling bracket according to embodiment 3 of the tank coupling structure of the present invention;
FIG. 9 is a first cross-sectional view of the connecting bracket of the present invention;
FIG. 10 is a cross-sectional view of a second embodiment of the present invention;
FIG. 11 is a third cross-sectional view of the connecting bracket of the present invention;
fig. 12 is an enlarged view of the structure of the case connection embodiment 1 of the present invention.
Description of the reference numerals:
1. upper cover, 2, lower box, 3, extra connection structure, 4, module, 5, linking bridge, 6, reinforcing plate, 7, locating plate.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In this application, the lateral direction refers to the left-right direction in fig. 3, and the longitudinal direction refers to the direction in which the linking bracket 5 shown in fig. 3 is disposed.
The invention provides an intensive low-cost flexible battery pack box body connecting method, which comprises the following steps: an independent connecting component is not additionally arranged in the lower box body 2 of the battery pack, but a fixed connecting point which must exist in the existing battery pack is used as a connecting point between the upper cover 1 and the lower box body 2 of the battery pack, so that the connection of the battery pack box body is realized. The invention optimizes the internal structure, improves the arrangement volume of the modules 4 in the box body, improves the space utilization rate and the energy density of the whole pack on the basis of maintaining the basic structure of the box body, and realizes the connection between the upper cover 1 and the lower box body 2 in the battery pack through a specially designed structure on the basis of utilizing the existing structures of the box body and the modules 4.
Specifically, the invention uses the fixed connection point between the lower case 2 and the module 4 of the existing battery pack as the connection point between the upper cover 1 and the lower case 2 of the battery pack to realize the connection of the battery pack cases. The fixed connection point between the lower box body 2 and the module 4 is arranged, the module 4 is connected with the fixed connection point of the lower box body 2, and independent connection points or connection assemblies do not need to be additionally arranged.
Specifically, at least two fixed connection points between the lower box body 2 and the module 4 and at least one connection point on the upper cover 1 are selected to be connected through the connecting support 5, and the connecting support 5 is provided with at least one connecting point, so that the connection of the battery pack box body is realized. The fixed connection point between the lower box body 2 and the module 4 and the connection point correspondingly arranged on the upper cover 1 are connected with the whole box body structure through a connection bracket 5 which does not occupy the internal space of the box body structure additionally.
In particular, said connecting brackets 5 are arranged in the same longitudinal direction across the mould or longitudinal module 4.
In particular, the connecting bracket 5 connects two modules 4 or a plurality of modules 4 or all modules 4 adjacent in the same longitudinal direction.
The connecting support 5 is a universal structural part, and can be used for designing specific structures according to performance requirements, designing the use quantity and not additionally increasing the tool cost. Connecting bracket 5 may span module 4, may connect two modules 4, a plurality of modules 4, or even all modules 4, may be selected according to specific performance requirements.
Specifically, the connecting bracket 5 is in a shape like a Chinese character 'ji', two sides of the bottom of the connecting bracket are respectively connected with the fixed connecting points between the lower box body 2 and the module 4 of the battery pack, and the top of the connecting bracket 5 is connected with the connecting points of the upper cover 1. The concrete structure of the connecting bracket 5 can be designed into a shape like a Chinese character 'ji', so that the upper cover 1 and the lower box body 2 can be connected in a three-point connection mode.
Specifically, the connecting bracket 5 spans two or more or all modules 4 in the transverse direction in the same longitudinal direction, as shown in fig. 3 and 4 and fig. 6 and 7 and 12, which respectively show two modules 4 and all modules 4 in the transverse direction in the same longitudinal direction, but may span a plurality of modules 4, and the distance and number of spans may be set according to actual conditions.
Specifically, the connecting brackets 5 longitudinally span the modules 4 in the same longitudinal direction, and two or more transverse modules 4 are respectively connected to two sides of the bottom of the connecting brackets 5, as shown in fig. 5 and 8, it is shown that the connecting brackets 5 longitudinally span the modules 4 in the same longitudinal direction, and the distances, the number and the intervals of the longitudinal spans are set according to actual conditions, and two connecting brackets 5 are shown in the figure.
Example 1
As shown in fig. 3 and 6 and fig. 12, the plurality of connecting brackets 5 are arranged in the transverse direction, each connecting bracket 5 covers a pair of modules 4 in the transverse direction, and a connecting point is arranged at the top of the connecting bracket to connect the upper cover 1.
Example 2
As shown in fig. 4 and 7, the connecting brackets 5 are transversely arranged and longitudinally arranged, the connecting brackets 5 cover all the modules 4 in the same longitudinal direction, and a plurality of connecting points are correspondingly arranged according to actual conditions.
Example 3
As shown in fig. 5 and 8, the two connecting brackets 5 are longitudinally arranged and spaced, the two sides of each connecting bracket 5 cover two transversely adjacent modules 4, the top of each connecting bracket 5 is provided with two connecting points connected with the upper cover 1, and the connecting points of the connecting brackets 5 and the range intervals covered by the connecting brackets 5 are flexibly adjusted according to actual conditions.
In addition to the specific connection method of embodiments 1 to 3, the specific structure of the connection bracket 5 is modified as follows, but the present application is not limited to the specific structure and the specific connection method of the connection bracket.
Example 4
As shown in fig. 9, which is a schematic cross-sectional view of the connecting bracket 5 shown in embodiments 1 to 3, the connecting bracket 5 is configured in a "u" shape.
Example 5
As shown in fig. 10, two reinforcing plates 6 are disposed in the height direction of the connecting bracket 5, one of the reinforcing plates connects two sides of the height direction, and the other reinforcing plate connects two sides of the bottom, so that the whole bottom is connected into a whole through the reinforcing plates 6, and the structural strength of the whole connecting bracket 5 is increased. The bottom of the connecting bracket 5 is provided with a pair of positioning plates 7 protruding downwards to achieve pre-positioning between the modules 4.
Example 6
As shown in fig. 11, a plurality of reinforcing plates 6 are arranged in the height direction of the connecting bracket 5, and the reinforcing plates 6 are connected between the two sides and the two sides of the bottom in the height direction and the reinforcing plates 6 respectively, so that the whole connecting bracket 5 is connected into a whole through the reinforcing plates 6, the strength of the structure of the whole connecting bracket 5 is increased, and meanwhile, the two sides in the height direction of the connecting bracket 5 are set to be in an inclined state, so as to increase the strength. According to the performance requirement and the connection strength requirement, a proper connection bracket 5 structure is selected.
All the connection points in the application are connected in a bolt locking manner. The connecting bracket 5 can be processed by processes such as aluminum alloy section bar and bent sheet metal parts, can use aluminum material and steel material, and has wide selection range.
While embodiments of the invention have been described above, it is not intended to be limited to the details shown, described and illustrated herein, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed, and to such extent that such modifications are readily available to those skilled in the art, and it is not intended to be limited to the details shown and described herein without departing from the general concept as defined by the appended claims and their equivalents.
Claims (10)
1. A connection method for an intensive low-cost flexible battery pack box body is characterized by comprising the following steps: an independent connecting component is not additionally arranged in the lower box body of the battery pack, but a fixed connecting point which must exist in the existing battery pack is used as a connecting point between the upper cover and the lower box body of the battery pack, so that the connection of the box body of the battery pack is realized.
2. The intensive low-cost flexible battery pack box connecting method according to claim 1, wherein the connection of the battery pack box is realized by using a fixed connection point between the lower box and the module of the existing battery pack as a connection point between the upper cover and the lower box of the battery pack.
3. The method for connecting the intensive low-cost flexible battery pack box bodies according to claim 2, wherein at least two fixed connecting points between the lower box body and the module are selected to be connected with at least one connecting point on the upper cover through a connecting support, and at least one connecting support is arranged to realize the connection of the battery pack box bodies.
4. The method for connecting the intensive low-cost flexible battery pack box body according to claim 3, wherein the connecting brackets are arranged across the die or the longitudinal die set in the same longitudinal direction.
5. The method for connecting the intensive low-cost flexible battery pack and box body according to claim 3, wherein the connecting bracket connects two or more or all modules which are adjacent in the same longitudinal direction.
6. The method for connecting the intensive low-cost flexible battery pack box body according to any one of claims 3 to 5, wherein the connecting bracket is shaped like a Chinese character 'ji', two sides of the bottom of the connecting bracket are respectively connected with fixed connecting points between the lower box body and the module of the battery pack, and the top of the connecting bracket is connected with the connecting points of the upper cover.
7. The method of connecting an intensive low-cost flexible battery pack case according to claim 6, wherein the connecting bracket spans two or more or all modules in the transverse direction in the same longitudinal direction.
8. The method for connecting the intensive low-cost flexible battery pack and box body according to claim 6, wherein the connecting brackets are longitudinally arranged across modules in the same longitudinal direction, and two or more modules in the transverse direction are respectively connected to two sides of the bottom of each connecting bracket.
9. The method for connecting the intensive low-cost flexible battery pack and the box body according to claim 6, wherein the connecting bracket is provided with at least one reinforcing plate along the height direction of the connecting bracket.
10. The method for connecting the intensive low-cost flexible battery pack and case body according to claim 9, wherein a pair of positioning plates protruding downwards are arranged at the bottom of the connecting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210582707.2A CN114759301A (en) | 2022-05-26 | 2022-05-26 | Intensive low-cost flexible battery pack box body connecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210582707.2A CN114759301A (en) | 2022-05-26 | 2022-05-26 | Intensive low-cost flexible battery pack box body connecting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114759301A true CN114759301A (en) | 2022-07-15 |
Family
ID=82336128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210582707.2A Pending CN114759301A (en) | 2022-05-26 | 2022-05-26 | Intensive low-cost flexible battery pack box body connecting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114759301A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203819360U (en) * | 2014-03-10 | 2014-09-10 | 浙江吉利控股集团有限公司 | Mounting bracket for mounting engine hood buffer block and engine hood buffer device |
| CN109671890A (en) * | 2019-01-11 | 2019-04-23 | 广州纵通汽车设计有限公司 | Battery box body and battery case |
| CN110459717A (en) * | 2019-09-16 | 2019-11-15 | 昆山宝创新能源科技有限公司 | Fixed beam and battery pack for battery pack |
| CN210123773U (en) * | 2019-09-16 | 2020-03-03 | 昆山宝创新能源科技有限公司 | Fixing beam for battery pack and battery pack |
| CN212011101U (en) * | 2020-06-18 | 2020-11-24 | 昆山宝创新能源科技有限公司 | Outer casing and battery package assembly of battery module |
| WO2021210805A1 (en) * | 2020-04-14 | 2021-10-21 | 주식회사 엘지에너지솔루션 | Battery pack and device including same |
-
2022
- 2022-05-26 CN CN202210582707.2A patent/CN114759301A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203819360U (en) * | 2014-03-10 | 2014-09-10 | 浙江吉利控股集团有限公司 | Mounting bracket for mounting engine hood buffer block and engine hood buffer device |
| CN109671890A (en) * | 2019-01-11 | 2019-04-23 | 广州纵通汽车设计有限公司 | Battery box body and battery case |
| CN110459717A (en) * | 2019-09-16 | 2019-11-15 | 昆山宝创新能源科技有限公司 | Fixed beam and battery pack for battery pack |
| CN210123773U (en) * | 2019-09-16 | 2020-03-03 | 昆山宝创新能源科技有限公司 | Fixing beam for battery pack and battery pack |
| WO2021210805A1 (en) * | 2020-04-14 | 2021-10-21 | 주식회사 엘지에너지솔루션 | Battery pack and device including same |
| CN212011101U (en) * | 2020-06-18 | 2020-11-24 | 昆山宝创新能源科技有限公司 | Outer casing and battery package assembly of battery module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101152855A (en) | Bumper structure of vehicle | |
| CN110171376B (en) | Front engine room collision energy-absorbing structure | |
| CN209739156U (en) | Automobile body roof beam structure under electronic passenger car | |
| CN211844626U (en) | Lower vehicle body frame structure and vehicle | |
| CN115066366A (en) | Rear damping tower, rear damping tower assembly and vehicle | |
| CN213948589U (en) | Platform-based electric vehicle floor | |
| CN217361773U (en) | Intensive low-cost flexible battery package box connection structure | |
| CN114759301A (en) | Intensive low-cost flexible battery pack box body connecting method | |
| CN210941964U (en) | Lightweight plastic front end frame module for vehicle body | |
| CN217074518U (en) | Aluminum alloy front auxiliary frame for PHEV and EV models | |
| CN112599914B (en) | Power battery panel beating lower box assembly structure | |
| CN211252762U (en) | Rear longitudinal beam structure | |
| CN209776366U (en) | Automobile protection structure | |
| CN208498599U (en) | A kind of front-end module and its main frame | |
| CN216750112U (en) | Power battery's installing support and vehicle | |
| CN211167110U (en) | New energy automobile front deck beam assembly | |
| CN216994534U (en) | Vehicle body assembly and vehicle | |
| CN210191406U (en) | Vehicle-mounted storage battery mounting bracket | |
| CN213199672U (en) | Grid installation device and vehicle | |
| CN218519525U (en) | Cantilever type mounting structure and car | |
| CN218400731U (en) | Vehicle body front part structure and automobile | |
| CN220465238U (en) | Oil tank mounting structure and vehicle | |
| CN210572639U (en) | Connecting beam of electric pile assembly | |
| CN219584306U (en) | Front end frame for vehicle and vehicle with front end frame | |
| CN215851106U (en) | Integrated aluminum alloy precision casting anti-collision beam assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |