CN110826227B - Method for designing section of battery pack box body - Google Patents
Method for designing section of battery pack box body Download PDFInfo
- Publication number
- CN110826227B CN110826227B CN201911079799.7A CN201911079799A CN110826227B CN 110826227 B CN110826227 B CN 110826227B CN 201911079799 A CN201911079799 A CN 201911079799A CN 110826227 B CN110826227 B CN 110826227B
- Authority
- CN
- China
- Prior art keywords
- initial
- design parameters
- section
- initial design
- battery pack
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a method for designing a section of a battery pack box body, which comprises the following steps: step S1, determining initial design parameters of a section of a battery pack box body; step S2, verifying whether the initial design parameters meet initial conditions; if the initial design parameters meet the initial conditions, step S3 is carried out, and if the initial design parameters do not meet the initial conditions, the initial design parameters are determined again until the initial design parameters meet the initial conditions; and step S3, modeling and simulating according to the initial design parameters. According to the battery pack box section design method, the initial design parameters are screened by setting the initial conditions, so that the situation that modeling simulation is carried out according to the initial design parameters under the condition that the initial design parameters do not meet the design requirements far can be prevented, the times of modeling simulation in the design process are reduced, and because the simulation requires a long time for computer operation and requires a designer to pay more time at the same time, the design period of the battery pack box section can be shortened and the design efficiency is improved through the scheme.
Description
Technical Field
The invention relates to the technical field of battery pack boxes, in particular to a method for designing a cross section of a battery pack box.
Background
New energy automobiles rapidly develop, and better demands are put forward on the light weight of battery packs. The mainstream design scheme is aluminium alloy box at present, through design aluminium alloy cross-section, can satisfy different structural strength rigidity demands.
In the prior art, in order to determine whether a structure can meet requirements, CAE simulation or test is generally required to be performed on a box body. In case the design requirements are not met, redesign, re-simulation, re-testing are required. This process may be repeated a number of times, which is time consuming and laborious.
Disclosure of Invention
The invention aims to at least solve the problems of large workload and low efficiency of characteristic information confirmation or later comparison in the prior art.
In view of the above, an object of the present invention is to provide a method for designing a cross section of a battery pack case.
In order to achieve the above object, the present invention provides a method for designing a cross section of a battery pack case, comprising: step S1, determining initial design parameters of a section of a battery pack box body; step S2, verifying whether the initial design parameters meet initial conditions; if the initial design parameters meet the initial conditions, step S3 is carried out, and if the initial design parameters do not meet the initial conditions, the initial design parameters are determined again until the initial design parameters meet the initial conditions; and step S3, modeling and simulating according to the initial design parameters.
In the scheme, after initial design parameters of the cross section of the battery pack box body are determined, whether the initial design parameters meet initial conditions is firstly verified, if the initial design parameters do not meet the initial conditions, the initial design parameters are not met far enough at the moment, so that the initial design parameters are determined again until the initial design parameters meet the initial conditions, the initial design parameters are relatively close to the final design requirements at the moment, modeling and simulation are carried out according to the initial design parameters, and whether the initial design parameters meet the design requirements is verified.
In this scheme, through setting up initial condition and screening initial design parameter, can prevent to carry out the condition of modeling simulation according to initial design parameter under the circumstances that initial design parameter does not satisfy the design requirement far, reduce the number of times of modeling simulation in the designing process, because the simulation needs the computer to calculate for a long time, the modeling also needs the designer to pay out more time simultaneously, therefore through this scheme, can shorten the design cycle of battery package box cross-section, improve design efficiency.
In the above technical solution, preferably, step S2 specifically includes: step S21, calculating at least one characteristic value according to the initial design parameters; step S22, judging whether the characteristic value meets the preset condition, and determining that the initial design parameter meets the initial condition when the characteristic value meets the preset condition.
In any of the above embodiments, preferably, the characteristic value includes a cross-sectional moment of inertia and a cross-sectional area, and step S22 specifically includes: step S221, judging whether the section moment of inertia is larger than a first preset value and the section area is smaller than a second preset value; in step S222, when the determination result is yes, it is determined that the initial design parameter satisfies the initial condition.
In any of the above solutions, preferably, the initial design parameters include: the step S21 specifically includes: calculating a section moment of inertia:
calculating the cross-sectional area:
A2＝t1*B+t2*B+i*(Z-t1-t2)*b；
wherein A1 is a section moment of inertia, A2 is a section area, B is a section width, t1 is an upper plate thickness, t2 is a lower plate thickness, Z is a section height, B is a stud width, and i is the number of studs.
In any of the above solutions, preferably, step S3 specifically includes: step S31, modeling the battery pack box body by using a 3D design system according to the initial design parameters to obtain a model; and S32, importing the model into a simulation computing system to obtain a simulation computing result.
In any of the above embodiments, preferably, the method further includes: s4, judging whether the simulation calculation result meets the design condition; if the simulation calculation result does not meet the design condition, the initial design parameters are redetermined, and the design parameters are re-verified.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
Fig. 1 is a flow chart illustrating a method of designing a cross section of a battery pack case according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method of designing a cross-section of a battery pack case according to one embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a battery pack case according to one embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of a battery pack case according to one embodiment of the present invention;
fig. 5 is a schematic diagram of a battery pack case according to an embodiment of the present invention;
fig. 6 is a cross section of a battery pack case model according to one embodiment of the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
Some embodiments according to the present invention are described below with reference to fig. 1 to 5.
As shown in fig. 1, an embodiment of the present invention provides a method for designing a cross section of a battery pack case, including: step S1, determining initial design parameters of a section of a battery pack box body; step S2, judging whether the initial design parameters meet initial conditions or not, and generating a first judgment result; and when the first judgment result is negative, re-executing the step S1 until the first judgment result is negative, executing the step S3, modeling according to the initial design parameters and simulating.
In the scheme, step S1 is performed to determine initial design parameters of the cross section of the battery pack box body, step S2 is performed to verify whether the initial design parameters meet initial conditions, if the initial design parameters do not meet the initial conditions, the initial design parameters do not meet the design requirements far, so that step S1 is performed again to determine the initial design parameters again until the initial design parameters meet the initial conditions, the initial design parameters are relatively close to the final design requirements, step S3 is performed to perform modeling and simulation according to the initial design parameters, and whether the initial design parameters meet the design requirements is verified.
In this scheme, through setting up initial condition and screening initial design parameter, can prevent to carry out the condition of modeling simulation according to initial design parameter under the circumstances that initial design parameter does not satisfy the design requirement far, reduce the number of times of modeling simulation in the designing process, because the simulation needs the computer to calculate for a long time, the modeling also needs the designer to pay out more time simultaneously, therefore through this scheme, can shorten the design cycle of battery package box cross-section, improve design efficiency.
In another embodiment of the present invention, as shown in fig. 2, a method for designing a cross section of a battery pack case includes: step S1, determining initial design parameters of a section of a battery pack box body; step S2, judging whether the initial design parameters meet initial conditions or not, and generating a first judgment result; when the first judgment result is negative, the step S1 is re-executed until the first judgment result is negative, the step S31 is executed, and the 3D design system is utilized to model the battery pack box body according to the initial design parameters, so as to obtain a model; step S32, importing the model into a simulation computing system to obtain a simulation computing result; and S4, judging whether the simulation calculation result meets the design condition, generating a second judgment result, and re-executing the step S1 when the second judgment result is negative until the second judgment result is positive.
In the scheme, step S1, determining initial design parameters of the cross section of a battery pack box body, step S2, verifying whether the initial design parameters meet initial conditions, if the initial design parameters do not meet the initial conditions, the initial design parameters are far from meeting the design requirements, so that the step S1 is re-executed, the initial design parameters are re-determined until the initial design parameters meet the initial conditions, the initial design parameters are relatively close to the final design requirements, step S31 is executed, and the battery pack box body is modeled by a 3D design system according to the initial design parameters to obtain a model; step S32, importing the model into a simulation computing system to obtain a simulation computing result; and S4, judging whether the simulation calculation result meets the design condition, generating a second judgment result, and when the second judgment result is negative, the initial design parameter does not meet the design requirement, and the section of the battery pack box body needs to be redesigned to redetermine the design parameter, so that the step S1 is re-executed until the second judgment result is positive, and the initial design parameter meets the design condition.
In the scheme, the initial design parameters are screened and verified through the initial design conditions and the design conditions, so that the design period can be greatly shortened, and the design efficiency is improved.
In the above embodiment, preferably, step S2 specifically includes: step S21, calculating at least one characteristic value according to the initial design parameters; step S22, judging whether the characteristic value meets the preset condition, and determining that the initial design parameter meets the initial condition when the characteristic value meets the preset condition.
In any of the foregoing embodiments, preferably, step S22 specifically includes: step S221, judging whether the section moment of inertia is larger than a first preset value and the section area is smaller than a second preset value; in step S222, when the determination result is yes, it is determined that the initial design parameter satisfies the initial condition.
The first preset value and the second preset value are determined by the following three methods:
method 1: the first preset value and the second preset value are respectively determined by referring to parameters of the battery pack which is already developed.
Method 2: in the case of no referenceable data, the magnitudes of the first preset value and the second preset value need to be reversely calculated by utilizing theoretical calculation according to technical requirements (such as parameters of maximum allowable deformation amount, maximum allowable weight and the like of the box body). The first preset value and the second preset value are simply and conveniently determined.
Method 3: under the condition of no referenceable data, a version of battery pack scheme can be designed first, after evaluation is carried out by using simulation software, the sizes of a first preset value and a second preset value are respectively determined according to technical requirements. The first preset value and the second preset value determined in the scheme are more accurate.
As shown in fig. 3 to 6, in any of the above embodiments, preferably, the initial design parameters include: the step S21 specifically includes: calculating a section moment of inertia:
calculating the cross-sectional area:
A2＝t1*B+t2*B+i*(Z-t1-t2)*b；
wherein A1 is a section moment of inertia, A2 is a section area, B is a section width, t1 is an upper plate thickness, t2 is a lower plate thickness, Z is a section height, B is a stud width, and i is the number of studs.
The technical scheme of the invention is described in detail by combining the drawings, and the initial design parameters are screened by setting the initial conditions, so that the condition of modeling and simulation according to the initial design parameters under the condition that the initial design parameters do not meet the design requirements far can be prevented, the number of times of modeling and simulation in the design process is reduced, and the simulation requires longer calculation time of a computer and takes more time for a designer to model, so that the design period of the section of the battery pack box can be shortened and the design efficiency is improved by the scheme.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order. These words may be interpreted as names.
Claims (4)
1. A battery pack case section design method, comprising:
step S1, determining initial design parameters of the section of the battery pack box body;
step S2, verifying whether the initial design parameters meet initial conditions; if the initial design parameters meet the initial conditions, performing step S3, and if the initial design parameters do not meet the initial conditions, re-determining the initial design parameters until the initial design parameters meet the initial conditions;
the step S2 specifically includes:
step S21, calculating at least one characteristic value according to the initial design parameters;
step S22, judging whether the characteristic value meets a preset condition, and determining that the initial design parameter meets the initial condition when the characteristic value meets the preset condition;
the characteristic values include a cross-sectional moment of inertia and a cross-sectional area, and the step S22 specifically includes:
step S221, judging whether the section moment of inertia is larger than a first preset value and whether the section area is smaller than a second preset value;
step S222, when the judgment result is yes, determining that the initial design parameters meet the initial conditions;
and step S3, modeling and simulating according to the initial design parameters.
2. The battery pack case section design method of claim 1, wherein the initial design parameters include: the step S21 specifically includes:
calculating the cross-sectional moment of inertia:
calculating the cross-sectional area:
A2＝t1*B+t2*B+i*(Z-t1-t2)*b；
wherein A1 is a section moment of inertia, A2 is a section area, B is a section width, t1 is an upper plate thickness, t2 is a lower plate thickness, Z is a section height, B is a stud width, and i is the number of studs.
3. The battery pack case section design method according to any one of claims 1 to 2, wherein the step S3 specifically includes:
step S31, modeling the battery pack box body by using a 3D design system according to the initial design parameters to obtain a model;
and step S32, importing the model into a simulation computing system to obtain a simulation computing result.
4. The battery pack case section design method according to claim 3, further comprising:
s4, judging whether the simulation calculation result meets design conditions or not; and if the simulation calculation result does not meet the design condition, re-determining the initial design parameter, and re-verifying the design parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911079799.7A CN110826227B (en) | 2019-11-07 | 2019-11-07 | Method for designing section of battery pack box body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911079799.7A CN110826227B (en) | 2019-11-07 | 2019-11-07 | Method for designing section of battery pack box body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110826227A CN110826227A (en) | 2020-02-21 |
| CN110826227B true CN110826227B (en) | 2023-07-07 |
Family
ID=69552948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911079799.7A Active CN110826227B (en) | 2019-11-07 | 2019-11-07 | Method for designing section of battery pack box body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110826227B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207611129U (en) * | 2017-12-22 | 2018-07-13 | 宁德时代新能源科技股份有限公司 | Battery pack tests system |
| CN109546027A (en) * | 2017-09-22 | 2019-03-29 | 苏州宝时得电动工具有限公司 | Battery pack and electric tool component |
| CN109873093A (en) * | 2019-03-05 | 2019-06-11 | 爱驰汽车有限公司 | Battery pack |
-
2019
- 2019-11-07 CN CN201911079799.7A patent/CN110826227B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546027A (en) * | 2017-09-22 | 2019-03-29 | 苏州宝时得电动工具有限公司 | Battery pack and electric tool component |
| CN207611129U (en) * | 2017-12-22 | 2018-07-13 | 宁德时代新能源科技股份有限公司 | Battery pack tests system |
| CN109873093A (en) * | 2019-03-05 | 2019-06-11 | 爱驰汽车有限公司 | Battery pack |
Non-Patent Citations (1)
| Title |
|---|
| 冯富春等.电池包箱体挤压铝型材截面形状优化.2019Altair技术大会.2019,第1-7页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110826227A (en) | 2020-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104036068B (en) | Automobile collision safety simulation analysis optimization design integrated system | |
| US20140277669A1 (en) | Additive topology optimized manufacturing for multi-functional components | |
| US20150294034A1 (en) | Machine tool design method and machine tool design system | |
| CN111125946B (en) | Method for optimizing structure of boarding body based on MDO technology | |
| CN104063559A (en) | Layout legalization method and system for distributed computing of large-scale integrated circuit | |
| CN105868428A (en) | Springback compensation method of stamped part | |
| CN110826227B (en) | Method for designing section of battery pack box body | |
| CN115391913A (en) | Simulation method and device based on meshless finite element, electronic equipment and medium | |
| US10695857B2 (en) | Topology-based spot weld optimization with inter-distance constraints | |
| CN105005210B (en) | Electromechanical integration analogue system and use its method | |
| Fukushige et al. | Computer-aided design for product upgradability under geometric constraints | |
| Choi et al. | Torsion beam axle system design with a multidisciplinary approach | |
| Moroncini et al. | NVH structural optimization using beams and shells FE concept models in the early car development phase at BMW | |
| CN105528480A (en) | Welding spot analysis method and apparatus | |
| CN115544746A (en) | Multi-attribute target-driven aluminum auxiliary frame optimization design method and system | |
| CN110826147B (en) | Automobile seat design method, equipment and medium based on energy distribution control | |
| Tille et al. | Improving CNF representations in SAT-based ATPG for industrial circuits using BDDs | |
| Morales et al. | Optimization methods applied to development of vehicle structures | |
| CN110955930A (en) | Mining engineering vehicle lightweight model obtaining method and device | |
| CN112307589A (en) | Unit working condition creating method and device, electronic equipment and storage medium | |
| CN117435308B (en) | Modelica model simulation method and system based on parallel computing algorithm | |
| CN116502342B (en) | Virtual simulation-based automobile engine hood fatigue endurance life prediction method and system | |
| CN115270584B (en) | Lightweight method suitable for new energy electric vehicle battery bracket | |
| Boart et al. | Enabling variation of manufacturing process parameters in early stages of product development | |
| US20230196290A1 (en) | Method for structural optimization of a design and cost of a physical object |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |