CN110571375B - Pressure buffering support and square battery module - Google Patents
Pressure buffering support and square battery module Download PDFInfo
- Publication number
- CN110571375B CN110571375B CN201910767788.1A CN201910767788A CN110571375B CN 110571375 B CN110571375 B CN 110571375B CN 201910767788 A CN201910767788 A CN 201910767788A CN 110571375 B CN110571375 B CN 110571375B
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- China
- Prior art keywords
- battery module
- support
- frame
- wire harness
- end plates
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- 230000003139 buffering effect Effects 0.000 title abstract description 11
- 238000005192 partition Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 206010063659 Aversion Diseases 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a pressure buffering support and a square battery module, adjacent batteries can be separated by a frame, heat dissipation is improved, and in addition, a plastic dividing plate can play a role in pressure buffering to buffer the pressure of expansion of a battery core; the triangular hollow part is arranged, so that the deformation effect is ensured, and meanwhile, the strength is good; set up bracket and insulation board, provide the support to the battery bottom, prevent that electric core vibration from producing the difference in height, also can play limiting displacement to the end plate that causes the aversion because the inflation of electric core.
Description
Technical Field
The invention relates to the field of power batteries, in particular to a pressure buffering support and a square battery module.
Background
The square lithium ion battery has the advantages of high energy density, wide trial range, long service life, convenience for grouping and the like, so that the square lithium ion battery is increasingly applied to the fields of electric automobiles and power grid energy storage.
At present, most of square battery modules on the market adopt battery cores to be glued and stacked, end plates are installed on two sides of each module, and battery cores are bundled in groups through plastic binding bands or steel binding bands. Although this structure is simple, the following problems exist:
firstly, after the battery cells are glued and stacked, the heat dissipation surface between the battery cells is reduced, which is not beneficial to the heat dissipation of the battery cells;
secondly, the expansive force in the process of charging and discharging the battery cells is directly transmitted to the end plates on the two sides through mutual superposition among the battery cells, so that the end plates are easily subjected to overlarge stress, the end plates are caused to lose efficacy, and the performance of the electrical property of the battery cells is further influenced;
third, electric core is battery core bottom in groups back and does not support, and the module can produce the difference in height through long-time vibrations between the electric core, and then influences the electric connection performance between the electric core.
Disclosure of Invention
In view of this, the invention provides a pressure buffer bracket and a square battery module, which are beneficial to heat dissipation and buffer expansion of a battery cell.
The technical scheme of the invention is realized as follows:
on one hand, the invention provides a pressure buffering support which comprises a frame (11) and a plurality of partition plates (12), wherein the partition plates (12) divide the interior of the frame (11) into a plurality of vertical channels (13) for accommodating square batteries, and the partition plates (12) are made of plastic materials.
On the basis of the technical scheme, preferably, the dividing plate (12) is transversely arranged in the frame (11) and divides the interior of the frame (11) into a plurality of discontinuous vertical channels (13).
On the basis of the technical scheme, preferably, the dividing plate (12) is vertically provided with a plurality of hollow parts (14).
Further preferably, the cross sections of the hollow parts (14) are triangular and are arranged at intervals, and the adjacent hollow parts (14) are arranged in a staggered and opposite mode.
On the basis of above technical scheme, preferred, still include two at least end plates (2), end plate (2) are vertical to be set up and transversely are provided with brace table (21), and frame (11) both ends set up respectively on brace table (21).
Further preferably, the cable tie device further comprises a cable tie (3), and the cable tie (3) is wound outside the two opposite end plates (2).
Still further preferably, the buffering foam (4) is at least arranged at the position close to the four top corners of the upper cover (3).
Further preferably, still include bracket (4), bracket (4) include horizontal bar (41), side strake (42) and two spacing (43), and side strake (42) are upwards buckled by horizontal bar (41) lateral part and are formed, and two spacing (43) are upwards buckled by horizontal bar (41) both ends and are formed, and two spacing (43) are respectively with both ends board (2) fastening connection, and horizontal bar (41) set up in both ends board (2) bottom, and side strake (42) set up in end board (2) side.
Still further preferably, the device further comprises an insulating plate (5), wherein the cross section of the insulating plate (5) is L-shaped and is arranged on the bracket (4).
Still further preferably, the wire harness support device further comprises a wire harness support body (6) and bolts (7), wherein the wire harness support body (6) is horizontally arranged on the two end plates (2), and the bolts (7) penetrate through the wire harness support body (6) and the end plates (2) and tightly connect the wire harness support body and the end plates.
In a second aspect, the invention provides a square battery module, which comprises a plurality of square batteries (8) and a plurality of pressure buffering brackets according to the first aspect of the invention, wherein the square batteries (8) are arranged in the vertical channel (13).
Compared with the prior art, the pressure buffer bracket and the square battery module have the following beneficial effects:
(1) the frame can separate adjacent batteries to improve heat dissipation, and the plastic dividing plate can play a role in pressure buffering to buffer the pressure of expansion of the battery core;
(2) the triangular hollow part is arranged, so that the deformation effect is ensured, and meanwhile, the strength is good;
(3) set up bracket and insulation board, provide the support to the battery bottom, prevent that electric core vibration from producing the difference in height, also can play limiting displacement to the end plate that causes the aversion because the inflation of electric core.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a perspective view of a prismatic battery module according to the present invention;
fig. 2 is an exploded view of a prismatic battery module according to the present invention;
FIG. 3 is a top view of the bracket of the present invention;
fig. 4 is a perspective view of an end plate of the prismatic battery module according to the present invention;
fig. 5 is a perspective view of a bracket of a prismatic battery module according to the present invention;
fig. 6 is a perspective view of an insulating plate of a prismatic battery module according to the present invention;
fig. 7 is a perspective view of a wire harness carrier of the prismatic battery module of the present invention;
fig. 8 is a perspective view of a square battery of the square battery module according to the present invention;
fig. 9 is a perspective view of an upper cover plate of a prismatic battery module according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, in conjunction with fig. 2 and 4, the prismatic battery module of the present invention includes a bracket 1, an end plate 2, a band 3, a bracket 4, an insulating plate 5, a wire harness carrier 6, a bolt 7, a prismatic battery 8, an electrical connection bar 9, and an upper cap plate 10.
Wherein, as the pressure buffering support part, the support 1 comprises a frame 11 and a partition plate 12. Wherein, the frame 11 is provided with a cavity for accommodating the stacked square batteries 8, and the dividing plate 12 divides the cavity inside the frame 11 into a plurality of vertical channels 13 for accommodating the square batteries 8. So, square battery 8 can be put into vertical passageway 13 one by one, is kept apart by division board 12 each other, and the reservation gap between the square battery 8 can play radiating effect, improves the radiating effect. Specifically, the dividing plate 12 is transversely disposed in the frame 11, and divides the inside of the frame 11 into a plurality of discontinuous vertical channels 13. Of course, the dividing plate 12 only needs to divide the inside of the frame 11 into a plurality of vertical channels 13 for accommodating the prismatic batteries 8, and those skilled in the art can adopt other known dividing methods under the spirit of the present document. The dividing plate 12 serves to divide the adjacent prismatic batteries 8, and also serves to compress the prismatic batteries 8 when the prismatic batteries 8 expand due to temperature rise, thereby buffering expansion pressure, so that the dividing plate 12 is made of plastic. In order to improve the compression effect of the partition plate 12, a plurality of hollowed-out parts 14 are vertically arranged on the partition plate 12, and when the partition plate is subjected to transverse pressure, the hollowed-out parts 14 shrink; when the external pressure is released, the hollow portion 14 is restored. Therefore, the hollow portion 14 should have a good compression performance and a certain strength, and can be automatically restored. Under the condition of material quality determination, the cross sections of the hollow parts 14 are preferably triangular, the hollow parts are arranged at intervals, and the adjacent hollow parts 14 are arranged in a staggered and opposite mode. Because the triangular structure is most stable, the recovery capability is strong. Of course, the hollow-out portion 14 may have other cross-sectional shapes.
And the end plate 2 plays a limiting role in the support 1. At least two of which are provided, respectively at both ends of a group of stacked square batteries 8. End plate 2 is vertical to be set up and transversely is provided with a supporting bench 21, and frame 11 both ends set up respectively on a supporting bench 21. In this way, the support table 21 supports the stand 1 while restricting the stand 1 from moving left and right. In the present embodiment, three support tables 21 and three brackets 1 are provided.
And the insulating plate 5 is arranged between the bracket 4 and the square battery 8 and plays a role of insulation, and the cross section of the insulating plate 5 is L-shaped and is arranged on the bracket 4.
The wire harness carrier 6 is horizontally arranged on the square batteries 8 arranged side by side, is used for fixing the wire harness and plays a role of insulation, and is fixed with the end plate 2. Specifically, the bolt 7 penetrates the wire harness carrier 6 and the end plate 2 and fastens them. Specifically, the battery pack further comprises an electrical connection bar 9 for electrically connecting the square batteries 8 with the square batteries 8; depending on the actual module, one or more electrical connection banks 9 may be present in the same module. In order to prevent a short circuit between the electrical connection bank 9 and the housing of the square battery 8, the wire harness carrier 6 is arranged between the electrical connection bank 9 and the housing of the square battery 8. Specifically, the wire harness carrier 6 is provided with an isolation vertical plate 61 of the electrical connection bar 9, and the isolation vertical plate is used for isolating the electrical connection bar 9 and ensuring the module insulation function. The wiring harness carrier 6 is also provided with an explosion-proof hole 62 for instantaneous pressure relief of the square battery 8 after excessive bulging, so that the safety of the module is improved. The harness carrier 6 is further provided with a module fixing screw mounting hole 63 for fixing the harness carrier and the module.
Specifically, still include upper cover plate 10, the lid is established on pencil carrier 6, still is provided with buckle structure 64 on pencil carrier 6 for with the installation of upper cover plate 10, and be convenient for the inside maintenance of later stage module through buckle structure.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides a square battery module, its includes support (1), and support (1) includes frame (11), its characterized in that: the support (1) further comprises a plurality of partition plates (12), the partition plates (12) are transversely arranged in the frame (11) to divide the interior of the frame (11) into a plurality of discontinuous vertical channels (13) for containing the square batteries, and the partition plates (12) are made of plastic materials; the frame is characterized by further comprising at least two end plates (2), wherein the end plates (2) are vertically arranged and transversely provided with a supporting table (21), and two ends of the frame (11) are respectively arranged on the supporting table (21); the square batteries (8) can be placed in the vertical channel (13) one by one and are isolated from each other by the partition plate (12); the partition plate (12) is vertically provided with a plurality of hollow parts (14), and the support table (21) and the support (1) are respectively arranged at intervals up and down.
2. The prismatic battery module according to claim 1, wherein: the cross sections of the hollow parts (14) are triangular, the hollow parts are arranged at intervals, and the adjacent hollow parts (14) are arranged in a staggered and opposite mode.
3. The prismatic battery module according to claim 1, wherein: the binding belt device also comprises a binding belt (3), and the binding belt (3) is wound on the outer sides of the two opposite end plates (2).
4. The prismatic battery module according to claim 1, wherein: still include bracket (4), bracket (4) are including horizontal bar (41), side strake (42) and two spacing (43), and side strake (42) are upwards buckled by horizontal bar (41) lateral part and are formed, and two spacing (43) are upwards buckled by horizontal bar (41) both ends and are formed, and two spacing (43) are respectively with both ends board (2) fastening connection, and horizontal bar (41) set up in both ends board (2) bottom, and side strake (42) set up in end board (2) side.
5. The prismatic battery module according to claim 4, wherein: the insulating plate (5) is arranged on the bracket (4), and the cross section of the insulating plate (5) is L-shaped.
6. The prismatic battery module according to claim 4, wherein: the wire harness support is characterized by further comprising a wire harness carrier (6) and bolts (7), wherein the wire harness carrier (6) is horizontally arranged on the two end plates (2), and the bolts (7) penetrate through the wire harness carrier (6) and the end plates (2) and are fixedly connected with the wire harness carrier and the end plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910767788.1A CN110571375B (en) | 2019-08-20 | 2019-08-20 | Pressure buffering support and square battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910767788.1A CN110571375B (en) | 2019-08-20 | 2019-08-20 | Pressure buffering support and square battery module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110571375A CN110571375A (en) | 2019-12-13 |
| CN110571375B true CN110571375B (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910767788.1A Active CN110571375B (en) | 2019-08-20 | 2019-08-20 | Pressure buffering support and square battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110571375B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118343509B (en) * | 2024-06-18 | 2024-09-06 | 宁德思客琦智能装备有限公司 | Cell module side moves and piles up device |
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| US9431686B2 (en) * | 2011-02-28 | 2016-08-30 | Sanyo Electric Co., Ltd. | Cell module and manufacturing method for cell module |
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| KR101767631B1 (en) * | 2014-10-08 | 2017-08-11 | 주식회사 엘지화학 | Frame for secondary battery and battery module including the same |
| JP6706598B2 (en) * | 2017-07-06 | 2020-06-10 | 本田技研工業株式会社 | Battery module |
| CN107833997B (en) * | 2017-11-10 | 2024-09-17 | 浙江冠华电气有限公司 | Side plate of battery module and manufacturing process thereof |
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2019
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|---|---|---|---|---|
| JP2014089822A (en) * | 2012-10-29 | 2014-05-15 | Mitsubishi Heavy Ind Ltd | Battery module |
| CN104953056A (en) * | 2014-03-31 | 2015-09-30 | 比亚迪股份有限公司 | Modularization battery module shell and battery module with same |
| CN109216607A (en) * | 2017-07-06 | 2019-01-15 | 本田技研工业株式会社 | battery module |
| CN207265142U (en) * | 2017-10-26 | 2018-04-20 | 宁德时代新能源科技股份有限公司 | A kind of battery modules |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110571375A (en) | 2019-12-13 |
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Effective date of registration: 20231213 Address after: 441000 building 6, international innovation industry base, No.49 Dengcheng Avenue, high tech Zone, Xiangyang City, Hubei Province Patentee after: Dongbo New Energy Technology Co.,Ltd. Address before: 430000 floors 11-12, Wuyin Jingkai building, 68 Chuangye Road, Wuhan Economic and Technological Development Zone, Wuhan, Hubei Province Patentee before: Wuhan Dongbo smart new energy technology Co.,Ltd. |