CN111029497A - High-energy-density battery module - Google Patents
High-energy-density battery module Download PDFInfo
- Publication number
- CN111029497A CN111029497A CN201911139193.8A CN201911139193A CN111029497A CN 111029497 A CN111029497 A CN 111029497A CN 201911139193 A CN201911139193 A CN 201911139193A CN 111029497 A CN111029497 A CN 111029497A
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- China
- Prior art keywords
- cover plate
- pole
- fixed
- integrated
- integrated cover
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- 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.)
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Classifications
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- 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
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- 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
- H01M50/50—Current conducting connections for cells or batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
A high-energy-density battery module comprises a battery core, side plates, end plates, an integrated cover plate assembly, a pole assembly and a cover plate; the side plates and the end plates are made of aluminum materials and are welded and fixed in a side seam laser welding mode; the integrated cover plate assembly and the end plates on the two sides are clamped and fixed above the rectangular mounting structure, the pole post assembly is fixed on the end plates, and the cover plate and the integrated cover plate assembly are clamped and fixed; the top of the cover plate is provided with a reinforcing rib, and the cover plate and the pole protective cover are formed with a convex rib through injection molding. According to the side plate, the traditional connection mode that the flanging structures are arranged at the bottom of the module and the connection position of the end plate is omitted, and an aluminum plate is directly used for penetrating and performing side seam welding, so that the total weight of the module is reduced; the integrated cover plate is provided with wire harness clamping grooves, each wire harness clamping groove can be used for fixing a plurality of wire harnesses at the same time, and the stability of wire harness installation cannot be influenced under the condition that the fixed number of the wire harnesses is different; the apron and utmost point post guard shield surface are moulded plastics and are sunk the muscle, increase structural strength, alleviate the module total weight.
Description
Technical Field
The invention relates to the field of battery modules, in particular to a battery module with high energy density.
Background
The endurance mileage is the anxiety of new energy automobile users all the time, and the improvement of the energy density of the power battery system is a great way to increase the endurance mileage of the new energy automobile, and the high-energy-density battery module is a unit of the power battery system. The lithium ion power battery module is used as a core component of the electric automobile, and the stability and reliability of the structure directly influence the performance and the service life of the whole battery system.
The current battery module, the integrated level is low, is not conform to the development trend of battery module, and the whole weight of battery module is too big, has aggravated the load of current drive, has reduced energy conversion efficiency, consequently, when improving the integrated level of battery module, how to reduce the weight of whole battery module is the technological problem in this field. While improving the integration, the following problems need to be faced: the structural strength of the whole module, the wiring problem of a large number of wire harnesses and the like are ensured, and the overall systematicness is required to be improved.
Disclosure of Invention
In view of the problems of the background art, the present invention provides a battery module with high energy density, and the present invention will be further described.
A high-energy-density battery module comprises a battery core, side plates, end plates, an integrated cover plate assembly, a pole assembly and a cover plate; the two pairs of side plates and the two opposite end plates are mutually connected to form a rectangular mounting structure in a surrounding way, and the side plates and the end plates are made of aluminum materials and are welded and fixed in a side seam laser welding mode; the integrated cover plate assembly and the end plates on the two sides are clamped and fixed above the rectangular mounting structure, the pole post assembly is fixed on the end plates, and the cover plate and the integrated cover plate assembly are clamped and fixed; the top of the cover plate is provided with a reinforcing rib, and the cover plate and the pole protective cover are formed with a convex rib by injection molding.
The integrated cover plate assembly comprises an integrated cover plate, a pole piece, a wiring harness clamping groove and a low-voltage connector; the number of the pole pieces is consistent with that of the battery cells and is electrically connected with the battery cells, the pole pieces are arranged in pole piece mounting grooves on an integrated cover plate, a wiring harness clamping groove is fixed on the integrated cover plate, the integrated cover plate and the wiring harness clamping groove are integrally injection-molded, and the low-voltage connectors are respectively fixed on two sides of the integrated cover plate;
further, each wire harness slot can simultaneously fix more than one wire harness.
Further, each wire harness clamping groove simultaneously fixes 1 or 3 wire harnesses.
Further, the fixed wire harnesses in each wire harness clamping groove are consistent.
The integrated apron side is outwards outstanding to be equipped with the card convex part, card convex part cross-section is right trapezoid, apron edge has the buckling parts along its thickness direction salient, the buckling parts has certain flexibility, it is provided with the spacing portion unanimous with the buckling parts profile still outwards to outstanding on the integrated apron.
The pole assembly comprises a pole fixing seat, a pole fixing plate and a pole protective cover; the pole fixing seat is fixed on the end plate, a placing groove for limiting the pole fixing plate is arranged in the pole fixing seat, the pole fixing plate is arranged in the placing groove, and a bolt hole is formed in the pole fixing plate; the pole pieces at the two ends of the integrated cover plate are provided with folded edges, the folded edges extend onto the pole column fixing plate, and the pole column penetrates through the pole pieces and is electrically connected with the pole pieces; utmost point post guard shield and utmost point post fixing base joint are including utmost point post fixing base, utmost point post fixed plate cladding.
Has the advantages that: compared with the prior art, the side plate provided by the invention has the advantages that the traditional connection mode that the flanging structures are arranged at the bottom of the module and the connection position of the end plate is cancelled, and the aluminum plate is directly penetrated and subjected to side seam welding, so that the total weight of the module is reduced; the integrated cover plate is provided with wire harness clamping grooves, each wire harness clamping groove can simultaneously fix 1 or 3 wire harnesses, and the stability of wire harness installation cannot be influenced under the condition that the fixed number of the wire harnesses is different; the surfaces of the cover plate and the pole post shield are injection-molded with sunk ribs, so that the structural strength is further increased, and the total weight of the module is reduced; the pole fixing seat is fixed in a plug-in mode, and the pole fixing plate is made of # steel flat iron and used for fixing copper bars when the modules are connected in series, so that the total weight of the modules is reduced, and the reliability of structural installation is improved; and the integrated cover plate assembly and the pole post assembly are improved and integrated.
Drawings
FIG. 1: the invention has a structure schematic diagram;
FIG. 2: the structure at A in FIG. 1 is enlarged schematically;
FIG. 3: fig. 1 is a schematic structural view of the cover plate and the pole shield removed;
FIG. 4: the structure at B in FIG. 3 is an enlarged schematic view;
FIG. 5: FIG. 4 shows the structure of the pole piece removed;
FIG. 6: effect diagrams after the integrated installation of the battery core;
in the figure: electric core 10, curb plate 20, end plate 30, integrated apron subassembly 40, integrated apron 41, pole piece mounting groove 411, card protruding portion 412, spacing portion 413, pole piece 42, hem 421, pencil draw-in groove 43, low pressure connector 44, utmost point post subassembly 50, utmost point post fixing base 51, standing groove 511, utmost point post fixed plate 52, bolt hole 521, utmost point post guard shield 53, apron 60, buckling parts 61, protruding muscle 62.
Detailed Description
An embodiment of the present invention will be described in detail with reference to fig. 1 to 6.
A high-energy-density battery module comprises a battery core 10, a side plate 20, an end plate 30, an integrated cover plate assembly 40, a pole assembly 50 and a cover plate 60; the two side plates 20 of the two pairs and the two opposite end plates 30 are connected with each other to form a rectangular mounting structure, the plurality of battery cells 10 are compactly arranged and mounted in the mounting structure, the capacity density is improved, and the battery cells are bonded with the battery cells, the battery cells and the end plates, and the battery cells and the side plates by using structural adhesives to form a group; the side plates 20 and the end plates 30 are made of aluminum, so that the overall weight is reduced while the structural strength is ensured, and the side seams are welded and fixed in a laser welding mode; integrated apron subassembly 40 adopts the buckle mode to be connected with the end plate 30 of both sides and fixes in the rectangle mounting structure top, utmost point post subassembly 50 is fixed in on end plate 30 through threaded fastener, apron 60 adopts to be fixed in on integrated apron subassembly 40 through the mode with integrated apron subassembly 40 joint.
The integrated cover plate assembly 40 comprises an integrated cover plate 41, a pole piece 42, a wiring harness clamping groove 43 and a low-voltage connector 44; the number of the pole pieces 42 is the same as that of the battery cells 10 and is electrically connected with the battery cells 10, the pole pieces 42 are installed in pole piece installation grooves 411 on the integrated cover plate 41, the wiring harness clamping grooves 43 are fixed on the integrated cover plate 41, and the low-voltage connectors 44 are respectively fixed on two sides of the integrated cover plate 41; each wire harness clamping groove 43 can simultaneously fix more than one wire harness, preferably 1 or 3 wire harnesses, the wire harnesses fixed in each wire harness clamping groove 43 are preferably consistent, but the fixed number of the wire harnesses in the embodiment does not influence the stability of the installation of the wire harnesses even under the condition of inequality; the integrated cover plate 41 and the wiring harness clamping groove 43 adopt an injection molding integrated mode, and corresponding wiring harness fixing accessories are reduced, so that the total weight of the module is reduced, and the energy density of the module is improved; the low voltage connector 44 is fixed to one side of the integrated cover plate 41 by a plastic snap.
The integrated cover plate assembly 40 is clamped with the cover plate 60, and in order to ensure the structural strength and the clamping tightness, the clamping structure is strengthened, specifically as follows: the outside salient card convex part 412 that is equipped with of integrated apron 41 side, card convex part 412 cross-section is right trapezoid, apron 60 edge has protruding buckling parts 61 along its thickness direction, buckling parts 61 has certain flexibility, buckling parts 61 is when the joint, and card convex part 412 is perpendicular downwards along the thickness direction of electric core 10, and after the inclined plane contact with buckling parts 61, certain deformation takes place for buckling parts 61, and final buckling parts 61 crosses card convex part 412 and resumes, this moment card convex part 412 runs through buckling parts 61 and accomplishes the joint. Furthermore, the integrated cover plate 41 is further provided with a limiting portion 413 which is consistent with the profile of the buckling portion 61 in an outward protruding mode, and the limiting portion 413 further limits the buckling portion 61 when clamping is conducted, so that the displacement of the buckling portion is prevented.
The pole assembly 50 comprises a pole fixing seat 51, a pole fixing plate 52 and a pole protecting cover 53; the pole fixing seat 51 is fixed on the end plate 60, the pole fixing plate 52 is arranged in the pole fixing seat 51, furthermore, a placing groove 511 for limiting the pole fixing plate 52 is arranged in the pole fixing seat 51, the pole fixing plate 52 is arranged in the placing groove 511, a bolt hole 521 is arranged on the pole fixing plate 52, the pole pieces 42 at two ends of the integrated cover plate 41 are provided with folded edges 421, the folded edges 421 extend to the pole fixing plate 52, a pole is arranged in the bolt hole 521 and fixed to the pole pieces, and the pole penetrates through the pole pieces 42 and is electrically connected with the pole pieces; the pole protective cover 53 is clamped with the pole fixing seat 51, and covers the pole fixing seat 51 and the pole fixing plate 52.
The cover plate 60 is manufactured with reinforcing ribs at the top of the injection molding part so as to reduce the thickness of the cover plate 60, reduce the total weight of the module and increase the structural strength.
The cover plate 60 and the pole protective cover 53 adopt a mode of injection molding convex ribs.
In this embodiment, the side plate 20 is connected to the bottom of the module and the joint of the end plate by a conventional flanging structure, and is directly penetrated by an aluminum plate and subjected to side seam welding, so as to reduce the total weight of the module; the integrated cover plate 41 is provided with wire harness clamping grooves 42, each wire harness clamping groove 42 can simultaneously fix 1 or 3 wire harnesses, and the stability of wire harness installation cannot be influenced under the condition that the fixed number of the wire harnesses is different; the surfaces of the cover plate and the pole post shield are injection-molded with sunk ribs, so that the structural strength is further increased, and the total weight of the module is reduced; the pole fixing seat 51 is fixed in a plug-in manner, and the pole fixing plate 52 is made of 45# steel flat iron and used for fixing copper bars when modules are connected in series, so that the total weight of the modules is reduced, and the reliability of structural installation is improved; the integrated cover plate assembly 40 and the pole assembly 50 are designed to be integrated.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A high-energy-density battery module comprises a battery core (10), side plates (20), end plates (30), an integrated cover plate assembly (40), a pole assembly (50) and a cover plate (60); the method is characterized in that: the two side plates (20) and the two opposite end plates (30) are connected with each other to form a rectangular mounting structure, and the side plates (20) and the end plates (30) are made of aluminum and are welded and fixed in a side seam laser welding mode; the integrated cover plate assembly (40) and the end plates (30) on the two sides are clamped and fixed above the rectangular mounting structure, the pole post assembly (50) is fixed on the end plates (30), and the cover plate (60) and the integrated cover plate assembly (40) are clamped and fixed; the top of the cover plate (60) is provided with a reinforcing rib, and the cover plate (60) and the pole protective cover (53) are formed with a convex rib (62) in an injection molding mode.
2. The high energy density battery module according to claim 1, wherein: the integrated cover plate assembly (40) comprises an integrated cover plate (41), a pole piece (42), a wiring harness clamping groove (43) and a low-voltage connector (44); the number of the pole pieces (42) is consistent with that of the battery cells (10) and is electrically connected with the battery cells (10), the pole pieces (42) are installed in pole piece installation grooves (411) in the integrated cover plate (41), the wiring harness clamping grooves (43) are fixed on the integrated cover plate (41), the integrated cover plate (41) and the wiring harness clamping grooves (43) are integrally molded, and the low-voltage connectors (44) are respectively fixed on two sides of the integrated cover plate (41).
3. The high energy density battery module according to claim 2, wherein: each wire harness clamping groove (43) can be used for fixing more than one wire harness at the same time.
4. The high energy density battery module according to claim 3, wherein: and each wire harness clamping groove (43) simultaneously fixes 1 or 3 wire harnesses.
5. A high energy density battery module according to any one of claims 2 to 4, wherein: the wire harnesses fixed in each wire harness clamping groove (43) are consistent.
6. A high energy density battery module according to any one of claims 1 to 5, wherein: the integrated cover plate is characterized in that a clamping convex part (412) is arranged on the side edge of the integrated cover plate (41) in an outwards protruding mode, the cross section of the clamping convex part (412) is in a right trapezoid shape, a buckling part (61) is arranged on the edge of the cover plate (60) in a protruding mode along the thickness direction of the cover plate, the buckling part (61) has certain flexibility, and a limiting part (413) consistent with the outline of the buckling part (61) is arranged on the integrated cover plate (41) in an outwards protruding mode.
7. A high energy density battery module according to any one of claims 1 to 6, wherein: the pole assembly (50) comprises a pole fixing seat (51), a pole fixing plate (52) and a pole protective cover (53); the pole fixing seat (51) is fixed on the end plate (60), a placing groove (511) for limiting the pole fixing plate (52) is formed in the pole fixing seat (51), the pole fixing plate (52) is arranged in the placing groove (511), and a bolt hole (521) is formed in the pole fixing plate (52); the pole pieces (42) positioned at two ends of the integrated cover plate (41) are provided with folded edges (421), the folded edges (421) extend to the pole column fixing plate (52), and the pole column penetrates through the pole pieces (42) and is electrically connected with the pole pieces; the pole protective cover (53) is clamped with the pole fixing seat (51) to cover the pole fixing seat (51) and the pole fixing plate (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911139193.8A CN111029497A (en) | 2019-11-20 | 2019-11-20 | High-energy-density battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911139193.8A CN111029497A (en) | 2019-11-20 | 2019-11-20 | High-energy-density battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111029497A true CN111029497A (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911139193.8A Pending CN111029497A (en) | 2019-11-20 | 2019-11-20 | High-energy-density battery module |
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| CN (1) | CN111029497A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111554838A (en) * | 2020-06-16 | 2020-08-18 | 合肥国轩高科动力能源有限公司 | Soft package module integrated cover plate structure |
| CN111785872A (en) * | 2020-06-05 | 2020-10-16 | 银隆新能源股份有限公司 | Battery module |
| CN111952509A (en) * | 2020-09-09 | 2020-11-17 | 湖北亿纬动力有限公司 | Packaging structure and battery module |
| CN112928379A (en) * | 2021-04-21 | 2021-06-08 | 江西安驰新能源科技有限公司 | Concatenation formula battery module |
-
2019
- 2019-11-20 CN CN201911139193.8A patent/CN111029497A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111785872A (en) * | 2020-06-05 | 2020-10-16 | 银隆新能源股份有限公司 | Battery module |
| CN111785872B (en) * | 2020-06-05 | 2023-08-11 | 银隆新能源股份有限公司 | Battery module |
| CN111554838A (en) * | 2020-06-16 | 2020-08-18 | 合肥国轩高科动力能源有限公司 | Soft package module integrated cover plate structure |
| CN111952509A (en) * | 2020-09-09 | 2020-11-17 | 湖北亿纬动力有限公司 | Packaging structure and battery module |
| CN112928379A (en) * | 2021-04-21 | 2021-06-08 | 江西安驰新能源科技有限公司 | Concatenation formula battery module |
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