CN110492031B - Detachable square battery module structure and assembling method thereof - Google Patents
Detachable square battery module structure and assembling method thereof Download PDFInfo
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- CN110492031B CN110492031B CN201910751328.XA CN201910751328A CN110492031B CN 110492031 B CN110492031 B CN 110492031B CN 201910751328 A CN201910751328 A CN 201910751328A CN 110492031 B CN110492031 B CN 110492031B
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- plastic frame
- battery
- battery unit
- circuit board
- flexible circuit
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
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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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a detachable square battery module structure which comprises a plastic frame body, a plurality of battery units, an acquisition module and an upper cover, wherein the plastic frame body comprises an upper plastic frame and a lower plastic frame which are connected through bolts, a plurality of lower partition plates are arranged in the lower plastic frame, a plurality of upper partition plates are correspondingly arranged in the upper plastic frame, two poles of each battery unit are respectively provided with a switching sheet, the plurality of battery units realize series-parallel connection of the battery units through a busbar spliced on the switching sheets, the acquisition module comprises an acquisition end and a flexible circuit board, the flexible circuit board is connected with the busbar through the acquisition end, the upper cover covers the top of the upper plastic frame, and the upper cover is provided with two output electrode protective covers. The invention can effectively reduce the adverse effect caused by the expansion of the battery cell, and meanwhile, the battery cell can be quickly disassembled and replaced with a fault battery cell.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a detachable square battery module structure and an assembling method thereof.
Background
With the development and progress of science and technology, lithium ion batteries have become an indispensable energy source in the national economic field. At present, lithium ion batteries mainly have three main forms, namely a cylinder, a square and a soft package. The energy density, the volume ratio and the safety of the battery pack are respectively advantageous, but the structural form of the battery pack assembled by the battery pack is basically similar. Generally, a lithium battery module is provided with a large-capacity battery pack and a large-capacity battery module which are formed by combining a plurality of small-capacity batteries in a series-parallel connection mode to meet the voltage and power required by automobile running, and the conventional series-parallel connection mode is connected by soldering, ultrasonic welding, spot welding, riveting, laser and the like. In order to satisfy longer continuation of the journey mileage, need place more electric cores in limited space, so need the space of continuous compression battery module, but because electric core after having experienced many times charge-discharge cycle, can take place the inflation, because do not have sufficient inflation space, the pressure that electric core received constantly increases, influences the cycle life of battery on the one hand, and on the other hand has the potential safety hazard.
In addition, the current square power battery module mostly adopts the structure to glue electric core and electric core, electric core and insulation board, insulation board and distolateral metalwork and bond fixedly, then carries out welded fastening with side metalwork and end edge metalwork. The electric core and the electric core are connected in series and in parallel and are respectively welded with the electric core pole columns by adopting an aluminum busbar. Since the parameters of the battery cells and the temperature at which the battery cells are operated are not completely the same, the energy attenuation of the whole battery system may be caused by the capacity attenuation of individual batteries in the later period of use, and at this time, if the battery pack needs to be replaced and repaired, the whole module or even the whole battery pack needs to be replaced, which undoubtedly increases the repair cost and wastes the battery cells of which the performance can still work.
Disclosure of Invention
The present invention is directed to overcome the above-mentioned shortcomings of the prior art, and provides a detachable prismatic battery module structure and an assembling method thereof.
In order to achieve the above purpose, the invention provides a detachable square battery module structure, which comprises a plastic frame body, a plurality of battery units, an acquisition module and an upper cover, wherein the plastic frame body comprises an upper plastic frame and a lower plastic frame which are connected through bolts, a plurality of lower partition plates are arranged in the lower plastic frame, a plurality of upper partition plates are correspondingly arranged in the upper plastic frame, the plurality of battery units are respectively arranged in a plurality of installation spaces formed by the plurality of upper partition plates and the plurality of lower partition plates in the plastic frame body, two poles of each battery unit are respectively provided with a switching sheet, the plurality of battery units realize series-parallel connection of the battery units through a busbar spliced on the switching sheet, the acquisition module comprises an acquisition end and a flexible circuit board, the flexible circuit board is fixed on the top surface of the upper plastic frame, the flexible circuit board is connected with the busbar through the acquisition end, the upper cover covers the top of the upper plastic frame, and the upper cover is provided with two output electrode protective covers.
Preferably, the metal reinforcing frame is sleeved on the top of the upper plastic frame and the bottom of the lower plastic frame, and two strip-shaped silica gel pads are arranged on the contact surface of the bottom surface of the lower plastic frame and the metal reinforcing frame.
Preferably, each side of the upper plastic frame and each side of the lower plastic frame are of hollow structures.
Preferably, the bolt holes of the upper plastic frame and the lower plastic frame are provided with metal inserts.
The invention also provides an assembling method of the detachable square battery module structure, which comprises the following steps:
1) Welding upper connection sheets on two poles of each battery unit;
2) Sequentially loading each battery unit into the lower plastic frame, and covering the upper plastic frame;
3) Sticking strip-shaped silica gel pads on the edges of two sides of the bottom surface of the lower plastic frame;
4) The top of the upper plastic frame and the bottom of the lower plastic frame are sleeved with metal reinforcing frames, and the upper plastic frame and the lower plastic frame are locked through bolts;
5) Inserting the bus bar into the adapter plate, then pasting the flexible circuit board on the upper plastic frame, and finally inserting the acquisition end of the flexible circuit board into the corresponding position of the bus bar;
6) The upper cover is covered on the upper plastic frame, and the output electrode protection cover is covered on the upper cover.
The technical scheme provided by the invention has the following beneficial effects:
the invention can effectively reduce the adverse effect caused by the expansion of the battery core, and can rapidly disassemble the module without damaging the structure of the module, thereby replacing the battery core with poor individual performance and solving the problem that the whole module or the battery pack needs to be replaced after the performance of the individual battery core is reduced.
Drawings
FIG. 1 is a schematic illustration of the explosive structure of the present invention;
FIG. 2 is a schematic diagram of a battery cell;
FIG. 3 is a schematic view of a plastic frame;
FIG. 4 is a schematic structural diagram of a plastic frame after a battery unit is mounted;
FIG. 5 is a schematic view of the bus bar of FIG. 4 after installation;
fig. 6 is a schematic structural view of fig. 5 with the upper cover installed.
In the figure: the battery module comprises a plastic frame body 1, an upper plastic frame 1a, an upper partition plate 1a1, a lower plastic frame 1b, a lower partition plate 1b1, a bolt 1c, a metal reinforcing frame 1d, a strip-shaped silica gel pad 1e, a battery unit 2, a switching sheet 2a, a bus bar 2b, an acquisition module 3, an acquisition end 3a, a flexible circuit board 3b, an upper cover 4 and an output electrode protection cover 4a.
Detailed Description
The invention is described in further detail below with reference to the figures and examples.
As shown in fig. 1a detachable square battery module structure, including plastic frame 1, a plurality of battery unit 2, collection module 3 and upper cover 4, plastic frame 1 includes last plastic frame 1a and lower plastic frame 1b through bolt 1c connection, be equipped with a plurality of lower baffles 1b1 in the plastic frame 1b down, it is equipped with a plurality of upper baffle 1a1, a plurality of to go up to correspond in the plastic frame 1a in the corresponding baffle 1a1 that is equipped with, a plurality of battery unit 2 installs respectively in a plurality of installation spaces that baffle 1a1 and a plurality of lower baffle 1b1 formed in the plastic frame 1a, every battery unit 2's the two poles of the earth all are equipped with switching piece 2a, and a plurality of battery unit 2 realizes the series-parallel connection of each battery unit 2 through the busbar 2b of pegging graft on switching piece 2a, collection module 3 is including gathering end 3a and flexible circuit board 3b, flexible circuit board 3b is fixed on last plastic frame 1a top surface, flexible circuit board 3b is connected with busbar 2b through gathering end 3a, upper cover 4a is equipped with two output protective covers 4a.
The metal reinforcing frame 1c is sleeved on the top of the upper plastic frame 1a and the bottom of the lower plastic frame 1b, and two strip-shaped silica gel pads 1d are arranged on the contact surface of the bottom surface of the lower plastic frame 1b and the metal reinforcing frame 1 c.
The side surfaces of the upper plastic frame 1a and the lower plastic frame 1b are all hollow structures.
And metal inserts are arranged in the bolt holes of the upper plastic frame 1a and the lower plastic frame 1 b.
The invention provides an assembling method of a detachable square battery module structure, which comprises the following steps:
1) Welding the upper tabs to both poles of each battery cell, as shown in fig. 2;
2) Sequentially loading each battery unit into the lower plastic frame, and covering the upper plastic frame;
3) Sticking strip-shaped silica gel pads on the edges of two sides of the bottom surface of the lower plastic frame;
4) The top of the upper plastic frame and the bottom of the lower plastic frame are sleeved with metal reinforcing frames, and the upper plastic frame and the lower plastic frame are locked by bolts as shown in fig. 4;
5) Inserting the bus bar into the adapter plate, then attaching the flexible circuit board to the upper plastic frame, and finally inserting the acquisition end of the flexible circuit board into the corresponding position of the bus bar, as shown in fig. 5;
6) The upper cover is covered on the upper plastic frame, and the output electrode protection cover is covered on the upper cover, as shown in fig. 6.
Other parts not described in detail are known in the art.
Claims (4)
1. The utility model provides a detachable square battery module structure which characterized in that: including plastic frame body (1), a plurality of battery unit (2), collection module (3) and upper cover (4), plastic frame body (1) includes last plastic frame (1 a) and lower plastic frame (1 b) connected through bolt (1 c), be equipped with a plurality of lower baffles (1 b 1) down in plastic frame (1 b), it is equipped with a plurality of upper baffles (1 a 1) to go up in plastic frame (1 a) correspondence, and is a plurality of battery unit (2) are installed respectively in a plurality of upper baffles (1 a 1) and a plurality of lower baffles (1 b 1) a plurality of installation space that form in plastic frame (1), every in the two poles of the earth of battery unit (2) all are equipped with switching piece (2 a), and are a plurality of battery unit (2) realize the parallelly connected of each battery unit (2) through busbar (2 b) of pegging graft on switching piece (2 a), collection module (3) is including gathering end (3 a) and flexible circuit board (3 b), flexible circuit board (3 b) is fixed on last plastic frame (1 a) top surface (1 a) and is equipped with collection module (1 b) top cover (1 b) and is equipped with two plastic frame (1 a) top portion and plastic frame (1 b) connection metal collection end (4) are all inserted and plastic frame (1 b) are connected in series connection cover (4) on plastic frame (1 b), and two strip-shaped silica gel pads (1 e) are arranged on the contact surface of the bottom surface of the lower plastic frame (1 b) and the metal reinforcing frame (1 d).
2. The detachable prismatic battery module structure of claim 1, wherein: each side surface of the upper plastic frame (1 a) and each side surface of the lower plastic frame (1 b) are of hollow structures.
3. The detachable prismatic battery module structure of claim 1, wherein: and the bolt holes of the upper plastic frame (1 a) and the lower plastic frame (1 b) are provided with metal inserts.
4. An assembling method of a detachable square battery module structure is characterized by comprising the following steps:
1) Welding upper connection sheets on two poles of each battery unit;
2) Sequentially loading each battery unit into the lower plastic frame, and covering the upper plastic frame;
3) Sticking strip-shaped silica gel pads on the edges of two sides of the bottom surface of the lower plastic frame;
4) The top of the upper plastic frame and the bottom of the lower plastic frame are sleeved with metal reinforcing frames, and the upper plastic frame and the lower plastic frame are locked through bolts;
5) Inserting the bus bar into the adapter plate, then pasting the flexible circuit board on the upper plastic frame, and finally inserting the acquisition end of the flexible circuit board into the corresponding position of the bus bar;
6) The upper cover is covered on the upper plastic frame, and the output electrode protection cover is covered on the upper cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910751328.XA CN110492031B (en) | 2019-08-14 | 2019-08-14 | Detachable square battery module structure and assembling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910751328.XA CN110492031B (en) | 2019-08-14 | 2019-08-14 | Detachable square battery module structure and assembling method thereof |
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| Publication Number | Publication Date |
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| CN110492031A CN110492031A (en) | 2019-11-22 |
| CN110492031B true CN110492031B (en) | 2022-10-18 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111326700A (en) * | 2019-12-26 | 2020-06-23 | 湖北锂诺新能源科技有限公司 | Electric connection structure between module electric cores |
| CN111312953A (en) * | 2019-12-26 | 2020-06-19 | 湖北锂诺新能源科技有限公司 | Glue frame structure for quickly grouping and conveniently disassembling square aluminum-shell batteries |
| CN111162222A (en) * | 2020-01-22 | 2020-05-15 | 珠海科创电力电子有限公司 | Battery pack module |
| CN111672775B (en) * | 2020-06-11 | 2021-12-24 | 浙江天能电池(江苏)有限公司 | Power storage battery fault single body screening structure and method thereof |
| CN114883723B (en) * | 2022-04-28 | 2024-06-11 | 浙江零跑科技股份有限公司 | Detachable battery system |
| CN116960579B (en) * | 2023-09-18 | 2024-01-26 | 厦门海辰储能科技股份有限公司 | Battery module and electric equipment |
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| CN206497928U (en) * | 2017-03-10 | 2017-09-15 | 江苏索尔新能源科技股份有限公司 | A kind of battery component for new-energy automobile |
| CN208767356U (en) * | 2018-01-31 | 2019-04-19 | 广州力电宝电子科技有限公司 | A kind of housing of power cell convenient for heat dissipation |
| CN109860468A (en) * | 2019-04-01 | 2019-06-07 | 北斗航天汽车（北京）有限公司 | A kind of electri forklift battery pack and battery packages method of completing the square |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2775551A1 (en) * | 2012-02-07 | 2014-09-10 | LG Chem, Ltd. | Manufacturing method for battery cells having novel structure |
| CN104218207A (en) * | 2014-07-16 | 2014-12-17 | 浙江超威创元实业有限公司 | Lithium ion battery module structure |
| CN206134770U (en) * | 2016-10-13 | 2017-04-26 | 浙江超威创元实业有限公司 | Power battery packaging structure and electric motor car |
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| CN110492031A (en) | 2019-11-22 |
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