CN107901450A - A kind of battery case and the battery case, the forming method of Battery case - Google Patents
A kind of battery case and the battery case, the forming method of Battery case Download PDFInfo
- Publication number
- CN107901450A CN107901450A CN201711182260.5A CN201711182260A CN107901450A CN 107901450 A CN107901450 A CN 107901450A CN 201711182260 A CN201711182260 A CN 201711182260A CN 107901450 A CN107901450 A CN 107901450A
- Authority
- CN
- China
- Prior art keywords
- battery case
- glass fabric
- supporting item
- forming method
- molding die
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7146—Battery-cases
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The present invention relates to a kind of battery case and the battery case, the forming method of Battery case, the forming method of Battery case to comprise the following steps, and 1）Supporting item and glass fabric are put into the setting position of Battery case molding die；2）Battery case is processed into by hot press forming technology.Compared with prior art, glass fabric and supporting item are integrally formed by hot-forming method, technique is simple; structural strength is high, and heat dissipation performance, corrosion resistance, air-tightness are lifted, and realize battery case lightweight; cost is low, is conducive to large-scale production and generally uses.
Description
Technical field
The present invention relates to a kind of battery case and the battery case, the forming method of Battery case.
Background technology
With adjustment of the country to new energy industry support policy, power battery enterprise is strong to the structure of battery case, stretching
Degree, weight, air-tightness, corrosion resistance etc. propose more requirements.Battery case includes Battery case and case lid, at present row
Industry is also easy to produce electricity using cast aluminium Battery case or steel plate welding Battery case, cast aluminium Battery case since casting technique is complicated more
Pond case defect, influences the air-tightness of battery case, while rejection rate and production cost are higher；Steel plate welds the processing technology of battery case
Complexity, weight is larger, and sealing performance is not good, and corrosion resistance is poor, can not meet industry lightweight requirements.
The content of the invention
It is an object of the invention to provide a kind of battery case, with solve battery case casting technique of the prior art it is complicated,
The problem of sealing performance is not good and corrosion resistance is poor；The present invention also aims to provide a kind of battery case, Battery case
Forming method.
To achieve the above object, the first technical solution of the forming method of Battery case of the present invention is：Battery case
Forming method, comprises the following steps, and 1）Supporting item and glass fabric are put into the setting position of Battery case molding die；
2）Battery case is processed into by hot press forming technology.
Second of technical solution of the forming method of Battery case of the present invention be：In the forming method of Battery case of the present invention
The first technical solution on the basis of, in step 1）In, single-layer glass fiber cloth and supporting item are put into Battery case shaping
The setting position of mould, is then superimposed multilayer woven glass fabric on single-layer glass fiber cloth again；It is or more by what is be superimposed
Layer glass fabric is directly and supporting item is put into the setting position of Battery case molding die.
The third technical solution of the forming method of Battery case of the present invention is：In the forming method of Battery case of the present invention
Second of technical solution on the basis of, in step 1）In, supporting item is first put into the setting position of Battery case molding die
Place, then the surface of first layer glass fabric is coated into bonding agent, glass fabric is put into Battery case molding die, is passed through
The infiltration of bonding agent makes supporting item is Nian Jie with glass fabric to pre-fix.
To achieve the above object, the first technical solution of the forming method of battery case of the present invention is：The shaping of battery case
Method, comprises the following steps, and 1）Supporting item and glass fabric are put into the setting position of Battery case molding die；2）It is logical
Cross hot press forming technology and be processed into Battery case；3）Battery case and case lid are tightly connected.
Second of technical solution of the forming method of battery case of the present invention be：The of the forming method of battery case of the present invention
On the basis of a kind of technical solution, in step 1）In, single-layer glass fiber cloth and supporting item are put into Battery case molding die
Setting position, be then superimposed multilayer woven glass fabric on single-layer glass fiber cloth again；Or the layer glass that will be superimposed
Glass fiber cloth is directly and supporting item is put into the setting position of Battery case molding die.
The third technical solution of the forming method of battery case of the present invention is：The of the forming method of battery case of the present invention
On the basis of two kinds of technical solutions, in step 1）In, supporting item is first put into the setting position of Battery case molding die, then
The surface of first layer glass fabric is coated into bonding agent, glass fabric is put into Battery case molding die and passes through bonding agent
Infiltration make supporting item is Nian Jie with glass fabric to pre-fix.
4th kind of technical solution of the forming method of battery case of the present invention be：The of the forming method of battery case of the present invention
On the basis of a kind of or second or the third technical solution, step 3）In case lid it is hot-forming by glass fabric.
To achieve the above object, the first technical solution of battery case of the present invention is：Battery case includes Battery case and right
Battery case plays the supporting item of booster action, Battery case and the supporting item integrated hot pressing formed.
Second of technical solution of battery case of the present invention be：On the basis of the first technical solution of battery case of the present invention
On, the supporting item includes side plate supporting beam, and the side plate supporting beam is equipped with the peace for being used for being fixed on battery case on vehicle frame
Fill hole.Supporting item can play the role of strengthening battery case and battery case is fixed on vehicle frame using supporting item, simplify
Structure.
The third technical solution of battery case of the present invention is：On the basis of second of technical solution of battery case of the present invention
On, the supporting item further includes floor support beams, and the floor support beams include being connected with side plate supporting beam positioned at bottom plate both sides
The short supporting beam of bottom plate and connection two short supporting beams of bottom plate bottom plate long support beam.Length supporting beam synergistic effect ensure that electricity
The integral strength of pond case, also increases the heat dissipation area of Battery case bottom.
4th kind of technical solution of battery case of the present invention be：Battery case of the present invention the first to the third any one
On the basis of technical solution, the plate inner wall of the Battery case is equipped with spaced apart reinforcing rib.Reinforcing rib strengthens battery
The overall structure of babinet.
5th kind of technical solution of battery case of the present invention be：On the basis of the 4th kind of technical solution of battery case of the present invention
On, the reinforcing rib is equipped with the groove for winding displacement and the positioning for being fixed on battery modules on Battery case bottom wall
Hole.
6th kind of technical solution of battery case of the present invention be：Battery case of the present invention the first to the third any one
On the basis of technical solution, the side plate of the Battery case is equipped with the flange coordinated with the sealing of the case lid of battery case, described to turn over
Seal is equipped between side and the case lid of battery case.Flange coordinates the good seal for ensureing Battery case and case lid with seal,
Improve sealing performance.
7th kind of technical solution of battery case of the present invention be：On the basis of the 7th kind of technical solution of battery case of the present invention
On, the case lid of the battery case is hot-forming by glass fabric.Glass fabric good insulating, corrosion resistance are high.
8th kind of technical solution of battery case of the present invention be：Battery case of the present invention the first to the third any one
On the basis of technical solution, the side plate of the Battery case is equipped with lifting lug.Lifting lug is easy to the transport of battery case.
9th kind of technical solution of battery case of the present invention be：Battery case of the present invention the first to the third any one
On the basis of technical solution, the supporting item is made of steel.
The beneficial effects of the invention are as follows：Compared with prior art, by hot-forming method by glass fabric and branch
Support member is integrally formed, and technique is simple, and structural strength is high, and heat dissipation performance, corrosion resistance, air-tightness are lifted, and is realized
Battery case lightweight, cost is low, be conducive to large-scale production and generally use.
Brief description of the drawings
Fig. 1 is the front view of battery case of the present invention；
Fig. 2 is the bottom view of battery case of the present invention；
Fig. 3 is the top view of battery case of the present invention；
Fig. 4 is the left view of battery case of the present invention；
Fig. 5 is the top view of the Battery case of battery case of the present invention.
Embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment of the battery case of the present invention, as shown in Figure 1, battery case includes Battery case 3 and case lid 1, battery
Babinet 3 and 1 fibreglass cloth of case lid are integrally formed by hot press forming technology, and glass fabric has intensity height, insulation
Property good and light weight the advantages that.In battery case process, corresponding babinet lifting lug 4 and supporting item are first placed on mould
The suitable position of tool, then glass fabric is cut into suitable geomery, required according to hot press forming technology, in layer
Glass fabric be put into heat pressing and molding mold obtain suitable thickness, while on glass fabric coated structure glue with pre-
Supporting item, lifting lug 4 and glass fabric, in other embodiments, can also be bonded in by the position of securing supports and lifting lug 4
After together, the setting position of Battery case molding die is placed into；Then hot press forming technology is utilized, in high temperature and pressure autoclave body
In, form Battery case 3 or case lid 1；Shaped again by epoxide-resin glue, finally by polyurethane weatherstrip and bolt 2 by electricity
Pond babinet 3 and the sealing of case lid 1 are combined together, and complete the processing and assembling of battery case.
In the present embodiment, as shown in Fig. 2, 14 lower surface of bottom plate of Battery case 3 is equipped with the short supporting beam 6 of bottom plate and bottom plate
Long support beam 7, the short supporting beam 6 of bottom plate are located at the both sides of bottom plate 14, and bottom plate long support beam 7 is located between two floor support beams 6,
Bottom plate transverse bar 13 is equipped between bottom plate long support beam 7, bottom plate transverse bar 13 can not only improve the structural strength of Battery case 3, also
The surface area of Battery case 3 can be increased, improve the heat dissipation performance of battery case.
In the present embodiment, as shown in figure 3,1 upper surface of case lid is designed with case lid transverse bar 16, the surface of battery box cover is added
Product, improves the heat dissipation performance of battery case, is mutually communicated between case lid transverse bar 16, and the fatigue for eliminating 16 end of case lid transverse bar is broken
Bad, 16 intersection of case lid transverse bar has sufficiently large space, reduces influencing each other between each case lid transverse bar 16, improves electricity
Pond case lid intensity；The side of case lid 1 is machined with case lid vertical bars 17, and case lid vertical bars 17 increase to improve the structural strength of case lid 1
Big 1 surface area of case lid, improves 1 heat dissipation performance of case lid.
In the present embodiment, as shown in figure 4, the through holes such as communication, maintenance, positive and negative anodes are machined with Battery case 3, these through holes
To realize data transfer, and operation easy to repair；Case lid 1 is equipped with to install the mounting hole of relief valve, ensure that battery
Security in the module course of work.
In the present embodiment, as shown in figure 5,14 inner wall of bottom plate of Battery case 3 is disposed with babinet front portion reinforcing rib 8, babinet
Middle part reinforcing rib 9, babinet rear portion reinforcing rib 10, reinforcing rib are connected by rivet 12 with the bottom plate 14 of Battery case 3, and reinforcing rib subtracts
Battery modules and the contact area of the bottom plate 14 of Battery case 3 are lacked, have added heat dissipation effect, be also machined with reinforcing rib some
Groove, its effect is to be used for winding displacement, make inside whole Battery case wire harness rationally, safety, beauty；And set on reinforcing rib
Some battery modules location holes 11 are counted, coordinate long bolt that battery modules are directly anchored to battery case bottom, save space.
In the present embodiment, the side plate of Battery case 3 is equipped with the babinet flange coordinated with the sealing of case lid 1, and babinet flange is adopted
With after overall outward flanging again to lower flange is carried out inside Battery case 3 so as to forming step surface；Case lid 1 is matched somebody with somebody with Battery case 3
The face of conjunction after overall outward flanging using, again to the technique that downward flange is carried out outside case lid 1, forming what is overlapped with Battery case 3
Step surface, ensures to coordinate with the good sealing of Battery case 3, strengthens battery case water proof and dust proof ability；On the side plate of Battery case 3
Side plate supporting beam 18 is additionally provided with, side plate supporting beam 18 is equipped with mounting hole, and side plate supporting beam 18 is coordinated by bolt and mounting hole
Battery case is fixed on vehicle frame, wherein, supporting beam uses Q235 steel.
In the present embodiment, the side plate of Battery case 3 is equipped with the lifting lug 4 coordinated with Battery case side vertical bars 19, lifting lug 4
Main function be conveniently to lift.
In other embodiments, corresponding babinet lifting lug 4 and supporting item can also be first placed on to the suitable position of mould
Put, then glass fabric is first bonded into multilayer, then multilayer woven glass fabric is integrally put into heat pressing and molding mold again,
In other embodiment, the glass fabric being bonded into multilayer can also be bonded together with lifting lug and supporting item by bonding agent
After be put into heat pressing and molding mold.
The specific embodiment of the forming method of battery case of the present invention, the tool of the forming method of the battery case and above-mentioned battery case
The forming method of the battery case of body embodiment is identical, and it will not go into details.
The specific embodiment of the forming method of Battery case of the present invention, the forming method of the Battery case and above-mentioned battery case
Specific embodiment Battery case forming method it is identical, it will not go into details.
Claims (10)
1. the forming method of Battery case, it is characterised in that：Comprise the following steps, 1）Supporting item and glass fabric are put into electricity
The setting position of pond babinet molding die；2）Battery case is processed into by hot press forming technology.
2. the forming method of Battery case according to claim 1, it is characterised in that：In step 1）In, first layer glass
Glass fiber cloth and supporting item are put into the setting position of Battery case molding die, are then folded again on first layer glass fabric
Add multilayer woven glass fabric；Or by the multilayer woven glass fabric being superimposed directly and supporting item be put into Battery case molding die
Setting position.
3. the forming method of Battery case according to claim 2, it is characterised in that：In step 1）In, first by supporting item
The setting position of Battery case molding die is put into, then the surface of first layer glass fabric is coated into bonding agent, glass
Fiber cloth is put into Battery case molding die, makes supporting item is Nian Jie with glass fabric to pre-fix by the infiltration of bonding agent.
4. the forming method of battery case, it is characterised in that：Comprise the following steps, 1）Supporting item and glass fabric are put into battery
The setting position of babinet molding die；2）Battery case is processed into by hot press forming technology；3）By Battery case and case lid
It is tightly connected.
5. the forming method of battery case according to claim 4, it is characterised in that：In step 1）In, first layer glass
Fiber cloth and supporting item are put into the setting position of Battery case molding die, are then superimposed again on first layer glass fabric
Multilayer woven glass fabric；Or by the multilayer woven glass fabric being superimposed directly and supporting item be put into Battery case molding die
Setting position.
6. the forming method of battery case according to claim 5, it is characterised in that：In step 1）In, first supporting item is put
Enter the setting position of Battery case molding die, then the surface of first layer glass fabric is coated into bonding agent, glass fibers
Wei Bu is put into Battery case molding die, makes supporting item is Nian Jie with glass fabric to pre-fix by the infiltration of bonding agent.
7. the forming method of the battery case according to claim 4 or 5 or 6, it is characterised in that：Step 3）In case lid pass through
Glass fabric is hot-forming.
8. the battery case processed with the forming method of the battery case described in claim 4, it is characterised in that：Including Battery case
With the supporting item that booster action is played to Battery case, Battery case and the supporting item integrated hot pressing formed.
9. battery case according to claim 8, it is characterised in that：The supporting item includes side plate supporting beam, the side plate
Supporting beam is equipped with the mounting hole for being used for being fixed on battery case on vehicle frame.
10. battery case according to claim 9, it is characterised in that：The supporting item further includes floor support beams, the bottom
Plate supporting beam includes two short supporting beams of bottom plate of the short supporting beam of bottom plate being connected positioned at bottom plate both sides with side plate supporting beam and connection
Bottom plate long support beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711182260.5A CN107901450A (en) | 2017-11-23 | 2017-11-23 | A kind of battery case and the battery case, the forming method of Battery case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711182260.5A CN107901450A (en) | 2017-11-23 | 2017-11-23 | A kind of battery case and the battery case, the forming method of Battery case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107901450A true CN107901450A (en) | 2018-04-13 |
Family
ID=61847539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711182260.5A Pending CN107901450A (en) | 2017-11-23 | 2017-11-23 | A kind of battery case and the battery case, the forming method of Battery case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107901450A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767163A (en) * | 2018-07-09 | 2018-11-06 | 深圳市诚思品科技有限公司 | A kind of lithium battery box |
| CN110385864A (en) * | 2019-08-27 | 2019-10-29 | 大连理工大学 | A kind of new-energy automobile polymer matrix composites battery case laying forming mold |
| CN110509570A (en) * | 2019-08-27 | 2019-11-29 | 大连理工大学 | A kind of new energy car battery carton and crate body carbon fiber prepreg laying forming method |
| CN112223783A (en) * | 2020-09-22 | 2021-01-15 | 肇庆市海特复合材料技术研究院 | Forming die and preparation method of lower frame of composite material battery pack |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4022864A (en) * | 1968-01-24 | 1977-05-10 | Plastigage Corporation | Method of forming glass fiber construction member |
| EP1238784A1 (en) * | 2001-03-05 | 2002-09-11 | Swiss Luggage SL AG | Profiled shell like product, manufacturing process and mold |
| CN101186707A (en) * | 2007-11-15 | 2008-05-28 | 重庆长安汽车股份有限公司 | Glass fiber multilayer fabric enhanced epoxy resin composite material for automobile |
| EP2345528A2 (en) * | 2010-01-18 | 2011-07-20 | EUROCOPTER DEUTSCHLAND GmbH | Manufacturing process for composite material part comprising a functional finishing layer |
| CN105655509A (en) * | 2016-03-18 | 2016-06-08 | 宁德时代新能源科技股份有限公司 | Lower box body and battery box comprising same |
| CN206293508U (en) * | 2016-12-21 | 2017-06-30 | 力神动力电池系统有限公司 | A kind of practical electric automobile battery box body |
| CN107331802A (en) * | 2017-06-19 | 2017-11-07 | 惠州市海龙模具塑料制品有限公司 | Battery case and its manufacture method |
-
2017
- 2017-11-23 CN CN201711182260.5A patent/CN107901450A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4022864A (en) * | 1968-01-24 | 1977-05-10 | Plastigage Corporation | Method of forming glass fiber construction member |
| EP1238784A1 (en) * | 2001-03-05 | 2002-09-11 | Swiss Luggage SL AG | Profiled shell like product, manufacturing process and mold |
| CN101186707A (en) * | 2007-11-15 | 2008-05-28 | 重庆长安汽车股份有限公司 | Glass fiber multilayer fabric enhanced epoxy resin composite material for automobile |
| EP2345528A2 (en) * | 2010-01-18 | 2011-07-20 | EUROCOPTER DEUTSCHLAND GmbH | Manufacturing process for composite material part comprising a functional finishing layer |
| CN105655509A (en) * | 2016-03-18 | 2016-06-08 | 宁德时代新能源科技股份有限公司 | Lower box body and battery box comprising same |
| CN206293508U (en) * | 2016-12-21 | 2017-06-30 | 力神动力电池系统有限公司 | A kind of practical electric automobile battery box body |
| CN107331802A (en) * | 2017-06-19 | 2017-11-07 | 惠州市海龙模具塑料制品有限公司 | Battery case and its manufacture method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767163A (en) * | 2018-07-09 | 2018-11-06 | 深圳市诚思品科技有限公司 | A kind of lithium battery box |
| CN110385864A (en) * | 2019-08-27 | 2019-10-29 | 大连理工大学 | A kind of new-energy automobile polymer matrix composites battery case laying forming mold |
| CN110509570A (en) * | 2019-08-27 | 2019-11-29 | 大连理工大学 | A kind of new energy car battery carton and crate body carbon fiber prepreg laying forming method |
| CN112223783A (en) * | 2020-09-22 | 2021-01-15 | 肇庆市海特复合材料技术研究院 | Forming die and preparation method of lower frame of composite material battery pack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107901450A (en) | A kind of battery case and the battery case, the forming method of Battery case | |
| CN206921896U (en) | Lower box and battery case | |
| CN107706328A (en) | A kind of new energy car battery pack housing and its manufacture method | |
| CN208053076U (en) | Hang battery case and its frame | |
| CN209691808U (en) | Lightweight water-cooled cells lodge body, battery pack and automobile | |
| CN112117411A (en) | Sandwich structure bottom plate of power battery lower box body and power battery lower box body | |
| CN208233177U (en) | A kind of body side wall inner panel | |
| CN207664127U (en) | Battery for electric automobile babinet and electric vehicle | |
| CN112659674A (en) | Lattice topological structure with channel, preparation method of lattice topological structure and cabin section wall plate | |
| CN108023046A (en) | Electric automobile integration battery case | |
| CN209972584U (en) | Body-in-white structure | |
| CN110518171A (en) | A kind of lightweight aluminium body structure | |
| CN207517758U (en) | A kind of battery case and its subrack | |
| CN216818504U (en) | Lightweight steel-aluminum hybrid battery box | |
| CN207353332U (en) | A kind of Battery case | |
| CN203780612U (en) | B column structure of car body | |
| CN211972121U (en) | Vacuum adsorption molding heating device for automobile front windshield | |
| CN207265952U (en) | A kind of auxiliary mould of solar cell module Anti-dislocation | |
| CN214542397U (en) | System structure of battery module | |
| CN211281011U (en) | Stainless steel side wall structure and train | |
| CN210576109U (en) | Lightweight aluminum box structure | |
| CN212625830U (en) | Lower box body of light-weight power battery box | |
| CN114069141A (en) | Die-casting aluminum alloy battery box frame structure for electric automobile and hybrid electric automobile | |
| CN207141208U (en) | A kind of aluminium section bar joint and body frame | |
| CN207282568U (en) | A kind of power battery box structure |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180413 |
|
| RJ01 | Rejection of invention patent application after publication |